100647620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{122741}}^1$

素因数の和:122791

約数の個数: 24

約数和(自身を含む): 216516888

約数和(自身を除く): 115869268

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 122741, 245482, 490964, 613705, 1227410, 2454820, 5032381, 10064762, 20129524, 25161905, 50323810, 100647620]

約数ペア:

[(1, 100647620), (2, 50323810), (4, 25161905), (5, 20129524), (10, 10064762), (20, 5032381), (41, 2454820), (82, 1227410), (164, 613705), (205, 490964), (410, 245482), (820, 122741)]