808258840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^2\times {\mathrm{2551}}^1$

素因数の和:2740

約数の個数: 48

約数和(自身を含む): 1839966480

約数和(自身を除く): 1031707640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2551, 3560, 5102, 7921, 10204, 12755, 15842, 20408, 25510, 31684, 39605, 51020, 63368, 79210, 102040, 158420, 227039, 316840, 454078, 908156, 1135195, 1816312, 2270390, 4540780, 9081560, 20206471, 40412942, 80825884, 101032355, 161651768, 202064710, 404129420, 808258840]

約数ペア:

[(1, 808258840), (2, 404129420), (4, 202064710), (5, 161651768), (8, 101032355), (10, 80825884), (20, 40412942), (40, 20206471), (89, 9081560), (178, 4540780), (356, 2270390), (445, 1816312), (712, 1135195), (890, 908156), (1780, 454078), (2551, 316840), (3560, 227039), (5102, 158420), (7921, 102040), (10204, 79210), (12755, 63368), (15842, 51020), (20408, 39605), (25510, 31684)]