64674580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 140152320

約数和(自身を除く): 75477740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 157, 172, 215, 314, 430, 479, 628, 785, 860, 958, 1570, 1916, 2395, 3140, 4790, 6751, 9580, 13502, 20597, 27004, 33755, 41194, 67510, 75203, 82388, 102985, 135020, 150406, 205970, 300812, 376015, 411940, 752030, 1504060, 3233729, 6467458, 12934916, 16168645, 32337290, 64674580]

約数ペア:

[(1, 64674580), (2, 32337290), (4, 16168645), (5, 12934916), (10, 6467458), (20, 3233729), (43, 1504060), (86, 752030), (157, 411940), (172, 376015), (215, 300812), (314, 205970), (430, 150406), (479, 135020), (628, 102985), (785, 82388), (860, 75203), (958, 67510), (1570, 41194), (1916, 33755), (2395, 27004), (3140, 20597), (4790, 13502), (6751, 9580)]