256681710

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{316891}}^1$

素因数の和:316910

約数の個数: 40

約数和(自身を含む): 690190776

約数和(自身を除く): 433509066

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 316891, 633782, 950673, 1584455, 1901346, 2852019, 3168910, 4753365, 5704038, 8556057, 9506730, 14260095, 17112114, 25668171, 28520190, 42780285, 51336342, 85560570, 128340855, 256681710]

約数ペア:

[(1, 256681710), (2, 128340855), (3, 85560570), (5, 51336342), (6, 42780285), (9, 28520190), (10, 25668171), (15, 17112114), (18, 14260095), (27, 9506730), (30, 8556057), (45, 5704038), (54, 4753365), (81, 3168910), (90, 2852019), (135, 1901346), (162, 1584455), (270, 950673), (405, 633782), (810, 316891)]