15912520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 23278520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 431, 520, 568, 710, 862, 923, 1420, 1724, 1846, 2155, 2840, 3448, 3692, 4310, 4615, 5603, 7384, 8620, 9230, 11206, 17240, 18460, 22412, 28015, 30601, 36920, 44824, 56030, 61202, 112060, 122404, 153005, 224120, 244808, 306010, 397813, 612020, 795626, 1224040, 1591252, 1989065, 3182504, 3978130, 7956260, 15912520]

約数ペア:

[(1, 15912520), (2, 7956260), (4, 3978130), (5, 3182504), (8, 1989065), (10, 1591252), (13, 1224040), (20, 795626), (26, 612020), (40, 397813), (52, 306010), (65, 244808), (71, 224120), (104, 153005), (130, 122404), (142, 112060), (260, 61202), (284, 56030), (355, 44824), (431, 36920), (520, 30601), (568, 28015), (710, 22412), (862, 18460), (923, 17240), (1420, 11206), (1724, 9230), (1846, 8620), (2155, 7384), (2840, 5603), (3448, 4615), (3692, 4310)]