81179800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31223}}^1$

素因数の和:31252

約数の個数: 48

約数和(自身を含む): 203268240

約数和(自身を除く): 122088440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 31223, 62446, 124892, 156115, 249784, 312230, 405899, 624460, 780575, 811798, 1248920, 1561150, 1623596, 2029495, 3122300, 3247192, 4058990, 6244600, 8117980, 10147475, 16235960, 20294950, 40589900, 81179800]

約数ペア:

[(1, 81179800), (2, 40589900), (4, 20294950), (5, 16235960), (8, 10147475), (10, 8117980), (13, 6244600), (20, 4058990), (25, 3247192), (26, 3122300), (40, 2029495), (50, 1623596), (52, 1561150), (65, 1248920), (100, 811798), (104, 780575), (130, 624460), (200, 405899), (260, 312230), (325, 249784), (520, 156115), (650, 124892), (1300, 62446), (2600, 31223)]