721264

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:808

約数の個数: 20

約数和(自身を含む): 1422280

約数和(自身を除く): 701016

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 739, 976, 1478, 2956, 5912, 11824, 45079, 90158, 180316, 360632, 721264]

約数ペア:

[(1, 721264), (2, 360632), (4, 180316), (8, 90158), (16, 45079), (61, 11824), (122, 5912), (244, 2956), (488, 1478), (739, 976)]