12538280

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{947}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 28326240

約数和(自身を除く): 15787960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 947, 1324, 1655, 1894, 2648, 3310, 3788, 4735, 6620, 7576, 9470, 13240, 18940, 37880, 313457, 626914, 1253828, 1567285, 2507656, 3134570, 6269140, 12538280]

約数ペア:

[(1, 12538280), (2, 6269140), (4, 3134570), (5, 2507656), (8, 1567285), (10, 1253828), (20, 626914), (40, 313457), (331, 37880), (662, 18940), (947, 13240), (1324, 9470), (1655, 7576), (1894, 6620), (2648, 4735), (3310, 3788)]