400540560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{238417}}^1$

素因数の和:238440

約数の個数: 80

約数和(自身を含む): 1419063936

約数和(自身を除く): 1018523376

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 238417, 476834, 715251, 953668, 1192085, 1430502, 1668919, 1907336, 2384170, 2861004, 3337838, 3576255, 3814672, 4768340, 5006757, 5722008, 6675676, 7152510, 8344595, 9536680, 10013514, 11444016, 13351352, 14305020, 16689190, 19073360, 20027028, 25033785, 26702704, 28610040, 33378380, 40054056, 50067570, 57220080, 66756760, 80108112, 100135140, 133513520, 200270280, 400540560]

約数ペア:

[(1, 400540560), (2, 200270280), (3, 133513520), (4, 100135140), (5, 80108112), (6, 66756760), (7, 57220080), (8, 50067570), (10, 40054056), (12, 33378380), (14, 28610040), (15, 26702704), (16, 25033785), (20, 20027028), (21, 19073360), (24, 16689190), (28, 14305020), (30, 13351352), (35, 11444016), (40, 10013514), (42, 9536680), (48, 8344595), (56, 7152510), (60, 6675676), (70, 5722008), (80, 5006757), (84, 4768340), (105, 3814672), (112, 3576255), (120, 3337838), (140, 2861004), (168, 2384170), (210, 1907336), (240, 1668919), (280, 1430502), (336, 1192085), (420, 953668), (560, 715251), (840, 476834), (1680, 238417)]