641569480

素因数分解:

$2^3\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{14621}}^1$

素因数の和:15729

約数の個数: 32

約数和(自身を含む): 1444946040

約数和(自身を除く): 803376560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1097, 2194, 4388, 5485, 8776, 10970, 14621, 21940, 29242, 43880, 58484, 73105, 116968, 146210, 292420, 584840, 16039237, 32078474, 64156948, 80196185, 128313896, 160392370, 320784740, 641569480]

約数ペア:

[(1, 641569480), (2, 320784740), (4, 160392370), (5, 128313896), (8, 80196185), (10, 64156948), (20, 32078474), (40, 16039237), (1097, 584840), (2194, 292420), (4388, 146210), (5485, 116968), (8776, 73105), (10970, 58484), (14621, 43880), (21940, 29242)]