20978283690

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13997}}^1$

素因数の和:14094

約数の個数: 256

約数和(自身を含む): 69985520640

約数和(自身を除く): 49007236950

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 54, 61, 63, 65, 70, 78, 90, 91, 105, 117, 122, 126, 130, 135, 182, 183, 189, 195, 210, 234, 270, 273, 305, 315, 351, 366, 378, 390, 427, 455, 546, 549, 585, 610, 630, 702, 793, 819, 854, 910, 915, 945, 1098, 1170, 1281, 1365, 1586, 1638, 1647, 1755, 1830, 1890, 2135, 2379, 2457, 2562, 2730, 2745, 3294, 3510, 3843, 3965, 4095, 4270, 4758, 4914, 5490, 5551, 6405, 7137, 7686, 7930, 8190, 8235, 11102, 11529, 11895, 12285, 12810, 13997, 14274, 16470, 16653, 19215, 21411, 23058, 23790, 24570, 27755, 27994, 33306, 35685, 38430, 41991, 42822, 49959, 55510, 57645, 69985, 71370, 83265, 83982, 97979, 99918, 107055, 115290, 125973, 139970, 149877, 166530, 181961, 195958, 209955, 214110, 249795, 251946, 293937, 299754, 363922, 377919, 419910, 489895, 499590, 545883, 587874, 629865, 749385, 755838, 853817, 881811, 909805, 979790, 1091766, 1259730, 1273727, 1469685, 1498770, 1637649, 1707634, 1763622, 1819610, 1889595, 2547454, 2561451, 2645433, 2729415, 2939370, 3275298, 3779190, 3821181, 4269085, 4409055, 4912947, 5122902, 5290866, 5458830, 5976719, 6368635, 7642362, 7684353, 8188245, 8538170, 8818110, 9825894, 11099621, 11463543, 11953438, 12737270, 12807255, 13227165, 15368706, 16376490, 17930157, 19105905, 22199242, 22927086, 23053059, 24564735, 25614510, 26454330, 29883595, 33298863, 34390629, 35860314, 38211810, 38421765, 46106118, 49129470, 53790471, 55498105, 57317715, 59767190, 66597726, 68781258, 76843530, 77697347, 89650785, 99896589, 107580942, 110996210, 114635430, 115265295, 155394694, 161371413, 166494315, 171953145, 179301570, 199793178, 230530590, 233092041, 268952355, 299689767, 322742826, 332988630, 343906290, 388486735, 466184082, 499482945, 537904710, 599379534, 699276123, 776973470, 806857065, 998965890, 1165460205, 1398552246, 1498448835, 1613714130, 2097828369, 2330920410, 2996897670, 3496380615, 4195656738, 6992761230, 10489141845, 20978283690]

約数ペア:

[(1, 20978283690), (2, 10489141845), (3, 6992761230), (5, 4195656738), (6, 3496380615), (7, 2996897670), (9, 2330920410), (10, 2097828369), (13, 1613714130), (14, 1498448835), (15, 1398552246), (18, 1165460205), (21, 998965890), (26, 806857065), (27, 776973470), (30, 699276123), (35, 599379534), (39, 537904710), (42, 499482945), (45, 466184082), (54, 388486735), (61, 343906290), (63, 332988630), (65, 322742826), (70, 299689767), (78, 268952355), (90, 233092041), (91, 230530590), (105, 199793178), (117, 179301570), (122, 171953145), (126, 166494315), (130, 161371413), (135, 155394694), (182, 115265295), (183, 114635430), (189, 110996210), (195, 107580942), (210, 99896589), (234, 89650785), (270, 77697347), (273, 76843530), (305, 68781258), (315, 66597726), (351, 59767190), (366, 57317715), (378, 55498105), (390, 53790471), (427, 49129470), (455, 46106118), (546, 38421765), (549, 38211810), (585, 35860314), (610, 34390629), (630, 33298863), (702, 29883595), (793, 26454330), (819, 25614510), (854, 24564735), (910, 23053059), (915, 22927086), (945, 22199242), (1098, 19105905), (1170, 17930157), (1281, 16376490), (1365, 15368706), (1586, 13227165), (1638, 12807255), (1647, 12737270), (1755, 11953438), (1830, 11463543), (1890, 11099621), (2135, 9825894), (2379, 8818110), (2457, 8538170), (2562, 8188245), (2730, 7684353), (2745, 7642362), (3294, 6368635), (3510, 5976719), (3843, 5458830), (3965, 5290866), (4095, 5122902), (4270, 4912947), (4758, 4409055), (4914, 4269085), (5490, 3821181), (5551, 3779190), (6405, 3275298), (7137, 2939370), (7686, 2729415), (7930, 2645433), (8190, 2561451), (8235, 2547454), (11102, 1889595), (11529, 1819610), (11895, 1763622), (12285, 1707634), (12810, 1637649), (13997, 1498770), (14274, 1469685), (16470, 1273727), (16653, 1259730), (19215, 1091766), (21411, 979790), (23058, 909805), (23790, 881811), (24570, 853817), (27755, 755838), (27994, 749385), (33306, 629865), (35685, 587874), (38430, 545883), (41991, 499590), (42822, 489895), (49959, 419910), (55510, 377919), (57645, 363922), (69985, 299754), (71370, 293937), (83265, 251946), (83982, 249795), (97979, 214110), (99918, 209955), (107055, 195958), (115290, 181961), (125973, 166530), (139970, 149877)]