387249980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{114571}}^1$

素因数の和:114606

約数の個数: 36

約数和(自身を含む): 880600392

約数和(自身を除く): 493350412

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 114571, 229142, 458284, 572855, 1145710, 1489423, 2291420, 2978846, 5957692, 7447115, 14894230, 19362499, 29788460, 38724998, 77449996, 96812495, 193624990, 387249980]

約数ペア:

[(1, 387249980), (2, 193624990), (4, 96812495), (5, 77449996), (10, 38724998), (13, 29788460), (20, 19362499), (26, 14894230), (52, 7447115), (65, 5957692), (130, 2978846), (169, 2291420), (260, 1489423), (338, 1145710), (676, 572855), (845, 458284), (1690, 229142), (3380, 114571)]