12458840

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{941}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 28146960

約数和(自身を除く): 15688120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 941, 1324, 1655, 1882, 2648, 3310, 3764, 4705, 6620, 7528, 9410, 13240, 18820, 37640, 311471, 622942, 1245884, 1557355, 2491768, 3114710, 6229420, 12458840]

約数ペア:

[(1, 12458840), (2, 6229420), (4, 3114710), (5, 2491768), (8, 1557355), (10, 1245884), (20, 622942), (40, 311471), (331, 37640), (662, 18820), (941, 13240), (1324, 9410), (1655, 7528), (1882, 6620), (2648, 4705), (3310, 3764)]