20931081570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{2137}}^1\times {\mathrm{2221}}^1$

素因数の和:4385

約数の個数: 144

約数和(自身を含む): 63363982968

約数和(自身を除く): 42432901398

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2137, 2205, 2221, 4274, 4410, 4442, 6411, 6663, 10685, 11105, 12822, 13326, 14959, 15547, 19233, 19989, 21370, 22210, 29918, 31094, 32055, 33315, 38466, 39978, 44877, 46641, 64110, 66630, 74795, 77735, 89754, 93282, 96165, 99945, 104713, 108829, 134631, 139923, 149590, 155470, 192330, 199890, 209426, 217658, 224385, 233205, 269262, 279846, 314139, 326487, 448770, 466410, 523565, 544145, 628278, 652974, 673155, 699615, 942417, 979461, 1047130, 1088290, 1346310, 1399230, 1570695, 1632435, 1884834, 1958922, 3141390, 3264870, 4712085, 4746277, 4897305, 9424170, 9492554, 9794610, 14238831, 23731385, 28477662, 33223939, 42716493, 47462770, 66447878, 71194155, 85432986, 99671817, 142388310, 166119695, 199343634, 213582465, 232567573, 299015451, 332239390, 427164930, 465135146, 498359085, 598030902, 697702719, 996718170, 1162837865, 1395405438, 1495077255, 2093108157, 2325675730, 2990154510, 3488513595, 4186216314, 6977027190, 10465540785, 20931081570]

約数ペア:

[(1, 20931081570), (2, 10465540785), (3, 6977027190), (5, 4186216314), (6, 3488513595), (7, 2990154510), (9, 2325675730), (10, 2093108157), (14, 1495077255), (15, 1395405438), (18, 1162837865), (21, 996718170), (30, 697702719), (35, 598030902), (42, 498359085), (45, 465135146), (49, 427164930), (63, 332239390), (70, 299015451), (90, 232567573), (98, 213582465), (105, 199343634), (126, 166119695), (147, 142388310), (210, 99671817), (245, 85432986), (294, 71194155), (315, 66447878), (441, 47462770), (490, 42716493), (630, 33223939), (735, 28477662), (882, 23731385), (1470, 14238831), (2137, 9794610), (2205, 9492554), (2221, 9424170), (4274, 4897305), (4410, 4746277), (4442, 4712085), (6411, 3264870), (6663, 3141390), (10685, 1958922), (11105, 1884834), (12822, 1632435), (13326, 1570695), (14959, 1399230), (15547, 1346310), (19233, 1088290), (19989, 1047130), (21370, 979461), (22210, 942417), (29918, 699615), (31094, 673155), (32055, 652974), (33315, 628278), (38466, 544145), (39978, 523565), (44877, 466410), (46641, 448770), (64110, 326487), (66630, 314139), (74795, 279846), (77735, 269262), (89754, 233205), (93282, 224385), (96165, 217658), (99945, 209426), (104713, 199890), (108829, 192330), (134631, 155470), (139923, 149590)]