15439840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{571}}^1$

素因数の和:612

約数の個数: 72

約数和(自身を含む): 39567528

約数和(自身を除く): 24127688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 571, 676, 845, 1040, 1142, 1352, 1690, 2080, 2284, 2704, 2855, 3380, 4568, 5408, 5710, 6760, 7423, 9136, 11420, 13520, 14846, 18272, 22840, 27040, 29692, 37115, 45680, 59384, 74230, 91360, 96499, 118768, 148460, 192998, 237536, 296920, 385996, 482495, 593840, 771992, 964990, 1187680, 1543984, 1929980, 3087968, 3859960, 7719920, 15439840]

約数ペア:

[(1, 15439840), (2, 7719920), (4, 3859960), (5, 3087968), (8, 1929980), (10, 1543984), (13, 1187680), (16, 964990), (20, 771992), (26, 593840), (32, 482495), (40, 385996), (52, 296920), (65, 237536), (80, 192998), (104, 148460), (130, 118768), (160, 96499), (169, 91360), (208, 74230), (260, 59384), (338, 45680), (416, 37115), (520, 29692), (571, 27040), (676, 22840), (845, 18272), (1040, 14846), (1142, 13520), (1352, 11420), (1690, 9136), (2080, 7423), (2284, 6760), (2704, 5710), (2855, 5408), (3380, 4568)]