397748240

素因数分解:

$2^4\times 5^1\times {\mathrm{563}}^1\times {\mathrm{8831}}^1$

素因数の和:9407

約数の個数: 40

約数和(自身を含む): 926512128

約数和(自身を除く): 528763888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 563, 1126, 2252, 2815, 4504, 5630, 8831, 9008, 11260, 17662, 22520, 35324, 44155, 45040, 70648, 88310, 141296, 176620, 353240, 706480, 4971853, 9943706, 19887412, 24859265, 39774824, 49718530, 79549648, 99437060, 198874120, 397748240]

約数ペア:

[(1, 397748240), (2, 198874120), (4, 99437060), (5, 79549648), (8, 49718530), (10, 39774824), (16, 24859265), (20, 19887412), (40, 9943706), (80, 4971853), (563, 706480), (1126, 353240), (2252, 176620), (2815, 141296), (4504, 88310), (5630, 70648), (8831, 45040), (9008, 44155), (11260, 35324), (17662, 22520)]