81850860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:317

約数の個数: 288

約数和(自身を含む): 322882560

約数和(自身を除く): 241031700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 28, 30, 35, 36, 38, 39, 42, 45, 52, 57, 60, 63, 65, 70, 76, 78, 84, 90, 91, 95, 105, 114, 117, 126, 130, 133, 140, 156, 171, 180, 182, 190, 195, 210, 228, 234, 247, 252, 260, 263, 266, 273, 285, 315, 342, 364, 380, 390, 399, 420, 455, 468, 494, 526, 532, 546, 570, 585, 630, 665, 684, 741, 780, 789, 798, 819, 855, 910, 988, 1052, 1092, 1140, 1170, 1197, 1235, 1260, 1315, 1330, 1365, 1482, 1578, 1596, 1638, 1710, 1729, 1820, 1841, 1995, 2223, 2340, 2367, 2394, 2470, 2630, 2660, 2730, 2964, 3156, 3276, 3419, 3420, 3458, 3682, 3705, 3945, 3990, 4095, 4446, 4734, 4788, 4940, 4997, 5187, 5260, 5460, 5523, 5985, 6838, 6916, 7364, 7410, 7890, 7980, 8190, 8645, 8892, 9205, 9468, 9994, 10257, 10374, 11046, 11115, 11835, 11970, 13676, 14820, 14991, 15561, 15780, 16380, 16569, 17095, 17290, 18410, 19988, 20514, 20748, 22092, 22230, 23670, 23933, 23940, 24985, 25935, 27615, 29982, 30771, 31122, 33138, 34190, 34580, 34979, 36820, 41028, 44460, 44973, 47340, 47866, 49970, 51285, 51870, 55230, 59964, 61542, 62244, 64961, 66276, 68380, 69958, 71799, 74955, 77805, 82845, 89946, 95732, 99940, 102570, 103740, 104937, 110460, 119665, 123084, 129922, 139916, 143598, 149910, 153855, 155610, 165690, 174895, 179892, 194883, 205140, 209874, 215397, 224865, 239330, 259844, 287196, 299820, 307710, 311220, 314811, 324805, 331380, 349790, 358995, 389766, 419748, 430794, 449730, 454727, 478660, 524685, 584649, 615420, 629622, 649610, 699580, 717990, 779532, 861588, 899460, 909454, 974415, 1049370, 1076985, 1169298, 1259244, 1299220, 1364181, 1435980, 1574055, 1818908, 1948830, 2098740, 2153970, 2273635, 2338596, 2728362, 2923245, 3148110, 3897660, 4092543, 4307940, 4547270, 5456724, 5846490, 6296220, 6820905, 8185086, 9094540, 11692980, 13641810, 16370172, 20462715, 27283620, 40925430, 81850860]

約数ペア:

[(1, 81850860), (2, 40925430), (3, 27283620), (4, 20462715), (5, 16370172), (6, 13641810), (7, 11692980), (9, 9094540), (10, 8185086), (12, 6820905), (13, 6296220), (14, 5846490), (15, 5456724), (18, 4547270), (19, 4307940), (20, 4092543), (21, 3897660), (26, 3148110), (28, 2923245), (30, 2728362), (35, 2338596), (36, 2273635), (38, 2153970), (39, 2098740), (42, 1948830), (45, 1818908), (52, 1574055), (57, 1435980), (60, 1364181), (63, 1299220), (65, 1259244), (70, 1169298), (76, 1076985), (78, 1049370), (84, 974415), (90, 909454), (91, 899460), (95, 861588), (105, 779532), (114, 717990), (117, 699580), (126, 649610), (130, 629622), (133, 615420), (140, 584649), (156, 524685), (171, 478660), (180, 454727), (182, 449730), (190, 430794), (195, 419748), (210, 389766), (228, 358995), (234, 349790), (247, 331380), (252, 324805), (260, 314811), (263, 311220), (266, 307710), (273, 299820), (285, 287196), (315, 259844), (342, 239330), (364, 224865), (380, 215397), (390, 209874), (399, 205140), (420, 194883), (455, 179892), (468, 174895), (494, 165690), (526, 155610), (532, 153855), (546, 149910), (570, 143598), (585, 139916), (630, 129922), (665, 123084), (684, 119665), (741, 110460), (780, 104937), (789, 103740), (798, 102570), (819, 99940), (855, 95732), (910, 89946), (988, 82845), (1052, 77805), (1092, 74955), (1140, 71799), (1170, 69958), (1197, 68380), (1235, 66276), (1260, 64961), (1315, 62244), (1330, 61542), (1365, 59964), (1482, 55230), (1578, 51870), (1596, 51285), (1638, 49970), (1710, 47866), (1729, 47340), (1820, 44973), (1841, 44460), (1995, 41028), (2223, 36820), (2340, 34979), (2367, 34580), (2394, 34190), (2470, 33138), (2630, 31122), (2660, 30771), (2730, 29982), (2964, 27615), (3156, 25935), (3276, 24985), (3419, 23940), (3420, 23933), (3458, 23670), (3682, 22230), (3705, 22092), (3945, 20748), (3990, 20514), (4095, 19988), (4446, 18410), (4734, 17290), (4788, 17095), (4940, 16569), (4997, 16380), (5187, 15780), (5260, 15561), (5460, 14991), (5523, 14820), (5985, 13676), (6838, 11970), (6916, 11835), (7364, 11115), (7410, 11046), (7890, 10374), (7980, 10257), (8190, 9994), (8645, 9468), (8892, 9205)]