81020040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{12739}}^1$

素因数の和:12806

約数の個数: 64

約数和(自身を含む): 247665600

約数和(自身を除く): 166645560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 6360, 12739, 25478, 38217, 50956, 63695, 76434, 101912, 127390, 152868, 191085, 254780, 305736, 382170, 509560, 675167, 764340, 1350334, 1528680, 2025501, 2700668, 3375835, 4051002, 5401336, 6751670, 8102004, 10127505, 13503340, 16204008, 20255010, 27006680, 40510020, 81020040]

約数ペア:

[(1, 81020040), (2, 40510020), (3, 27006680), (4, 20255010), (5, 16204008), (6, 13503340), (8, 10127505), (10, 8102004), (12, 6751670), (15, 5401336), (20, 4051002), (24, 3375835), (30, 2700668), (40, 2025501), (53, 1528680), (60, 1350334), (106, 764340), (120, 675167), (159, 509560), (212, 382170), (265, 305736), (318, 254780), (424, 191085), (530, 152868), (636, 127390), (795, 101912), (1060, 76434), (1272, 63695), (1590, 50956), (2120, 38217), (3180, 25478), (6360, 12739)]