8778100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2141}}^1$

素因数の和:2196

約数の個数: 36

約数和(自身を含む): 19522188

約数和(自身を除く): 10744088

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 2141, 4100, 4282, 8564, 10705, 21410, 42820, 53525, 87781, 107050, 175562, 214100, 351124, 438905, 877810, 1755620, 2194525, 4389050, 8778100]

約数ペア:

[(1, 8778100), (2, 4389050), (4, 2194525), (5, 1755620), (10, 877810), (20, 438905), (25, 351124), (41, 214100), (50, 175562), (82, 107050), (100, 87781), (164, 53525), (205, 42820), (410, 21410), (820, 10705), (1025, 8564), (2050, 4282), (2141, 4100)]