628681405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1429}}^1$

素因数の和:1885

約数の個数: 32

約数和(自身を含む): 868982400

約数和(自身を除く): 240300995

約数列:

[1, 5, 11, 19, 55, 95, 209, 421, 1045, 1429, 2105, 4631, 7145, 7999, 15719, 23155, 27151, 39995, 78595, 87989, 135755, 298661, 439945, 601609, 1493305, 3008045, 6617699, 11430571, 33088495, 57152855, 125736281, 628681405]

約数ペア:

[(1, 628681405), (5, 125736281), (11, 57152855), (19, 33088495), (55, 11430571), (95, 6617699), (209, 3008045), (421, 1493305), (1045, 601609), (1429, 439945), (2105, 298661), (4631, 135755), (7145, 87989), (7999, 78595), (15719, 39995), (23155, 27151)]