20268260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19121}}^1$

素因数の和:19183

約数の個数: 24

約数和(自身を含む): 43368696

約数和(自身を除く): 23100436

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19121, 38242, 76484, 95605, 191210, 382420, 1013413, 2026826, 4053652, 5067065, 10134130, 20268260]

約数ペア:

[(1, 20268260), (2, 10134130), (4, 5067065), (5, 4053652), (10, 2026826), (20, 1013413), (53, 382420), (106, 191210), (212, 95605), (265, 76484), (530, 38242), (1060, 19121)]