388891775

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{941}}^1$

素因数の和:1283

約数の個数: 24

約数和(自身を含む): 492462528

約数和(自身を除く): 103570753

約数列:

[1, 5, 25, 61, 271, 305, 941, 1355, 1525, 4705, 6775, 16531, 23525, 57401, 82655, 255011, 287005, 413275, 1275055, 1435025, 6375275, 15555671, 77778355, 388891775]

約数ペア:

[(1, 388891775), (5, 77778355), (25, 15555671), (61, 6375275), (271, 1435025), (305, 1275055), (941, 413275), (1355, 287005), (1525, 255011), (4705, 82655), (6775, 57401), (16531, 23525)]