12220520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 30119040

約数和(自身を除く): 17898520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 331, 355, 520, 568, 662, 710, 923, 1324, 1420, 1655, 1846, 2648, 2840, 3310, 3692, 4303, 4615, 6620, 7384, 8606, 9230, 13240, 17212, 18460, 21515, 23501, 34424, 36920, 43030, 47002, 86060, 94004, 117505, 172120, 188008, 235010, 305513, 470020, 611026, 940040, 1222052, 1527565, 2444104, 3055130, 6110260, 12220520]

約数ペア:

[(1, 12220520), (2, 6110260), (4, 3055130), (5, 2444104), (8, 1527565), (10, 1222052), (13, 940040), (20, 611026), (26, 470020), (40, 305513), (52, 235010), (65, 188008), (71, 172120), (104, 117505), (130, 94004), (142, 86060), (260, 47002), (284, 43030), (331, 36920), (355, 34424), (520, 23501), (568, 21515), (662, 18460), (710, 17212), (923, 13240), (1324, 9230), (1420, 8606), (1655, 7384), (1846, 6620), (2648, 4615), (2840, 4303), (3310, 3692)]