123985240

素因数分解:

$2^3\times 5^1\times {\mathrm{829}}^1\times {\mathrm{3739}}^1$

素因数の和:4579

約数の個数: 32

約数和(自身を含む): 279378000

約数和(自身を除く): 155392760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 829, 1658, 3316, 3739, 4145, 6632, 7478, 8290, 14956, 16580, 18695, 29912, 33160, 37390, 74780, 149560, 3099631, 6199262, 12398524, 15498155, 24797048, 30996310, 61992620, 123985240]

約数ペア:

[(1, 123985240), (2, 61992620), (4, 30996310), (5, 24797048), (8, 15498155), (10, 12398524), (20, 6199262), (40, 3099631), (829, 149560), (1658, 74780), (3316, 37390), (3739, 33160), (4145, 29912), (6632, 18695), (7478, 16580), (8290, 14956)]