20630885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 28864512

約数和(自身を除く): 8233627

約数列:

[1, 5, 11, 23, 47, 55, 115, 235, 253, 347, 517, 1081, 1265, 1735, 2585, 3817, 5405, 7981, 11891, 16309, 19085, 39905, 59455, 81545, 87791, 179399, 375107, 438955, 896995, 1875535, 4126177, 20630885]

約数ペア:

[(1, 20630885), (5, 4126177), (11, 1875535), (23, 896995), (47, 438955), (55, 375107), (115, 179399), (235, 87791), (253, 81545), (347, 59455), (517, 39905), (1081, 19085), (1265, 16309), (1735, 11891), (2585, 7981), (3817, 5405)]