71828988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 217362432

約数和(自身を除く): 145533444

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 37, 42, 44, 66, 74, 77, 84, 111, 121, 132, 148, 154, 191, 222, 231, 242, 259, 308, 363, 382, 407, 444, 462, 484, 518, 573, 726, 764, 777, 814, 847, 924, 1036, 1146, 1221, 1337, 1452, 1554, 1628, 1694, 2101, 2292, 2442, 2541, 2674, 2849, 3108, 3388, 4011, 4202, 4477, 4884, 5082, 5348, 5698, 6303, 7067, 8022, 8404, 8547, 8954, 10164, 11396, 12606, 13431, 14134, 14707, 16044, 17094, 17908, 21201, 23111, 25212, 26862, 28268, 29414, 31339, 34188, 42402, 44121, 46222, 49469, 53724, 58828, 62678, 69333, 77737, 84804, 88242, 92444, 94017, 98938, 125356, 138666, 148407, 155474, 161777, 176484, 188034, 197876, 233211, 277332, 296814, 310948, 323554, 376068, 466422, 485331, 544159, 593628, 647108, 855107, 932844, 970662, 1088318, 1632477, 1710214, 1941324, 2176636, 2565321, 3264954, 3420428, 5130642, 5985749, 6529908, 10261284, 11971498, 17957247, 23942996, 35914494, 71828988]

約数ペア:

[(1, 71828988), (2, 35914494), (3, 23942996), (4, 17957247), (6, 11971498), (7, 10261284), (11, 6529908), (12, 5985749), (14, 5130642), (21, 3420428), (22, 3264954), (28, 2565321), (33, 2176636), (37, 1941324), (42, 1710214), (44, 1632477), (66, 1088318), (74, 970662), (77, 932844), (84, 855107), (111, 647108), (121, 593628), (132, 544159), (148, 485331), (154, 466422), (191, 376068), (222, 323554), (231, 310948), (242, 296814), (259, 277332), (308, 233211), (363, 197876), (382, 188034), (407, 176484), (444, 161777), (462, 155474), (484, 148407), (518, 138666), (573, 125356), (726, 98938), (764, 94017), (777, 92444), (814, 88242), (847, 84804), (924, 77737), (1036, 69333), (1146, 62678), (1221, 58828), (1337, 53724), (1452, 49469), (1554, 46222), (1628, 44121), (1694, 42402), (2101, 34188), (2292, 31339), (2442, 29414), (2541, 28268), (2674, 26862), (2849, 25212), (3108, 23111), (3388, 21201), (4011, 17908), (4202, 17094), (4477, 16044), (4884, 14707), (5082, 14134), (5348, 13431), (5698, 12606), (6303, 11396), (7067, 10164), (8022, 8954), (8404, 8547)]