285778840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{420263}}^1$

素因数の和:420291

約数の個数: 32

約数和(自身を含む): 680827680

約数和(自身を除く): 395048840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 420263, 840526, 1681052, 2101315, 3362104, 4202630, 7144471, 8405260, 14288942, 16810520, 28577884, 35722355, 57155768, 71444710, 142889420, 285778840]

約数ペア:

[(1, 285778840), (2, 142889420), (4, 71444710), (5, 57155768), (8, 35722355), (10, 28577884), (17, 16810520), (20, 14288942), (34, 8405260), (40, 7144471), (68, 4202630), (85, 3362104), (136, 2101315), (170, 1681052), (340, 840526), (680, 420263)]