397370480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{382087}}^1$

素因数の和:382113

約数の個数: 40

約数和(自身を含む): 994957152

約数和(自身を除く): 597586672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 382087, 764174, 1528348, 1910435, 3056696, 3820870, 4967131, 6113392, 7641740, 9934262, 15283480, 19868524, 24835655, 30566960, 39737048, 49671310, 79474096, 99342620, 198685240, 397370480]

約数ペア:

[(1, 397370480), (2, 198685240), (4, 99342620), (5, 79474096), (8, 49671310), (10, 39737048), (13, 30566960), (16, 24835655), (20, 19868524), (26, 15283480), (40, 9934262), (52, 7641740), (65, 6113392), (80, 4967131), (104, 3820870), (130, 3056696), (208, 1910435), (260, 1528348), (520, 764174), (1040, 382087)]