131461980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{168541}}^1$

素因数の和:168566

約数の個数: 48

約数和(自身を含む): 396410784

約数和(自身を除く): 264948804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 168541, 337082, 505623, 674164, 842705, 1011246, 1685410, 2022492, 2191033, 2528115, 3370820, 4382066, 5056230, 6573099, 8764132, 10112460, 10955165, 13146198, 21910330, 26292396, 32865495, 43820660, 65730990, 131461980]

約数ペア:

[(1, 131461980), (2, 65730990), (3, 43820660), (4, 32865495), (5, 26292396), (6, 21910330), (10, 13146198), (12, 10955165), (13, 10112460), (15, 8764132), (20, 6573099), (26, 5056230), (30, 4382066), (39, 3370820), (52, 2528115), (60, 2191033), (65, 2022492), (78, 1685410), (130, 1011246), (156, 842705), (195, 674164), (260, 505623), (390, 337082), (780, 168541)]