31825040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 80994816

約数和(自身を除く): 49169776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 355, 431, 520, 568, 710, 862, 923, 1040, 1136, 1420, 1724, 1846, 2155, 2840, 3448, 3692, 4310, 4615, 5603, 5680, 6896, 7384, 8620, 9230, 11206, 14768, 17240, 18460, 22412, 28015, 30601, 34480, 36920, 44824, 56030, 61202, 73840, 89648, 112060, 122404, 153005, 224120, 244808, 306010, 397813, 448240, 489616, 612020, 795626, 1224040, 1591252, 1989065, 2448080, 3182504, 3978130, 6365008, 7956260, 15912520, 31825040]

約数ペア:

[(1, 31825040), (2, 15912520), (4, 7956260), (5, 6365008), (8, 3978130), (10, 3182504), (13, 2448080), (16, 1989065), (20, 1591252), (26, 1224040), (40, 795626), (52, 612020), (65, 489616), (71, 448240), (80, 397813), (104, 306010), (130, 244808), (142, 224120), (208, 153005), (260, 122404), (284, 112060), (355, 89648), (431, 73840), (520, 61202), (568, 56030), (710, 44824), (862, 36920), (923, 34480), (1040, 30601), (1136, 28015), (1420, 22412), (1724, 18460), (1846, 17240), (2155, 14768), (2840, 11206), (3448, 9230), (3692, 8620), (4310, 7384), (4615, 6896), (5603, 5680)]