318760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 773640

約数和(自身を除く): 454880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 613, 1226, 2452, 3065, 4904, 6130, 7969, 12260, 15938, 24520, 31876, 39845, 63752, 79690, 159380, 318760]

約数ペア:

[(1, 318760), (2, 159380), (4, 79690), (5, 63752), (8, 39845), (10, 31876), (13, 24520), (20, 15938), (26, 12260), (40, 7969), (52, 6130), (65, 4904), (104, 3065), (130, 2452), (260, 1226), (520, 613)]