256610040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{4391}}^1$

素因数の和:4892

約数の個数: 64

約数和(自身を含む): 771586560

約数和(自身を除く): 514976520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 487, 974, 1461, 1948, 2435, 2922, 3896, 4391, 4870, 5844, 7305, 8782, 9740, 11688, 13173, 14610, 17564, 19480, 21955, 26346, 29220, 35128, 43910, 52692, 58440, 65865, 87820, 105384, 131730, 175640, 263460, 526920, 2138417, 4276834, 6415251, 8553668, 10692085, 12830502, 17107336, 21384170, 25661004, 32076255, 42768340, 51322008, 64152510, 85536680, 128305020, 256610040]

約数ペア:

[(1, 256610040), (2, 128305020), (3, 85536680), (4, 64152510), (5, 51322008), (6, 42768340), (8, 32076255), (10, 25661004), (12, 21384170), (15, 17107336), (20, 12830502), (24, 10692085), (30, 8553668), (40, 6415251), (60, 4276834), (120, 2138417), (487, 526920), (974, 263460), (1461, 175640), (1948, 131730), (2435, 105384), (2922, 87820), (3896, 65865), (4391, 58440), (4870, 52692), (5844, 43910), (7305, 35128), (8782, 29220), (9740, 26346), (11688, 21955), (13173, 19480), (14610, 17564)]