90644440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2909}}^1$

素因数の和:2980

約数の個数: 64

約数和(自身を含む): 219996000

約数和(自身を除く): 129351560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 1558, 1640, 2909, 3116, 3895, 5818, 6232, 7790, 11636, 14545, 15580, 23272, 29090, 31160, 55271, 58180, 110542, 116360, 119269, 221084, 238538, 276355, 442168, 477076, 552710, 596345, 954152, 1105420, 1192690, 2210840, 2266111, 2385380, 4532222, 4770760, 9064444, 11330555, 18128888, 22661110, 45322220, 90644440]

約数ペア:

[(1, 90644440), (2, 45322220), (4, 22661110), (5, 18128888), (8, 11330555), (10, 9064444), (19, 4770760), (20, 4532222), (38, 2385380), (40, 2266111), (41, 2210840), (76, 1192690), (82, 1105420), (95, 954152), (152, 596345), (164, 552710), (190, 477076), (205, 442168), (328, 276355), (380, 238538), (410, 221084), (760, 119269), (779, 116360), (820, 110542), (1558, 58180), (1640, 55271), (2909, 31160), (3116, 29090), (3895, 23272), (5818, 15580), (6232, 14545), (7790, 11636)]