8518040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3491}}^1$

素因数の和:3563

約数の個数: 32

約数和(自身を含む): 19485360

約数和(自身を除く): 10967320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3491, 6982, 13964, 17455, 27928, 34910, 69820, 139640, 212951, 425902, 851804, 1064755, 1703608, 2129510, 4259020, 8518040]

約数ペア:

[(1, 8518040), (2, 4259020), (4, 2129510), (5, 1703608), (8, 1064755), (10, 851804), (20, 425902), (40, 212951), (61, 139640), (122, 69820), (244, 34910), (305, 27928), (488, 17455), (610, 13964), (1220, 6982), (2440, 3491)]