1623637720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{990023}}^1$

素因数の和:990075

約数の個数: 32

約数和(自身を含む): 3742290720

約数和(自身を除く): 2118653000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 990023, 1980046, 3960092, 4950115, 7920184, 9900230, 19800460, 39600920, 40590943, 81181886, 162363772, 202954715, 324727544, 405909430, 811818860, 1623637720]

約数ペア:

[(1, 1623637720), (2, 811818860), (4, 405909430), (5, 324727544), (8, 202954715), (10, 162363772), (20, 81181886), (40, 40590943), (41, 39600920), (82, 19800460), (164, 9900230), (205, 7920184), (328, 4950115), (410, 3960092), (820, 1980046), (1640, 990023)]