71816180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{123821}}^1$

素因数の和:123859

約数の個数: 24

約数和(自身を含む): 156015720

約数和(自身を除く): 84199540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 123821, 247642, 495284, 619105, 1238210, 2476420, 3590809, 7181618, 14363236, 17954045, 35908090, 71816180]

約数ペア:

[(1, 71816180), (2, 35908090), (4, 17954045), (5, 14363236), (10, 7181618), (20, 3590809), (29, 2476420), (58, 1238210), (116, 619105), (145, 495284), (290, 247642), (580, 123821)]