1221228385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{4271}}^1$

素因数の和:4425

約数の個数: 32

約数和(自身を含む): 1627734528

約数和(自身を除く): 406506143

約数列:

[1, 5, 13, 53, 65, 83, 265, 415, 689, 1079, 3445, 4271, 4399, 5395, 21355, 21995, 55523, 57187, 226363, 277615, 285935, 354493, 1131815, 1772465, 2942719, 4608409, 14713595, 18788129, 23042045, 93940645, 244245677, 1221228385]

約数ペア:

[(1, 1221228385), (5, 244245677), (13, 93940645), (53, 23042045), (65, 18788129), (83, 14713595), (265, 4608409), (415, 2942719), (689, 1772465), (1079, 1131815), (3445, 354493), (4271, 285935), (4399, 277615), (5395, 226363), (21355, 57187), (21995, 55523)]