7979940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1031}}^1$

素因数の和:1089

約数の個数: 72

約数和(自身を含む): 24792768

約数和(自身を除く): 16812828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1031, 1290, 1548, 1935, 2062, 2580, 3093, 3870, 4124, 5155, 6186, 7740, 9279, 10310, 12372, 15465, 18558, 20620, 30930, 37116, 44333, 46395, 61860, 88666, 92790, 132999, 177332, 185580, 221665, 265998, 398997, 443330, 531996, 664995, 797994, 886660, 1329990, 1595988, 1994985, 2659980, 3989970, 7979940]

約数ペア:

[(1, 7979940), (2, 3989970), (3, 2659980), (4, 1994985), (5, 1595988), (6, 1329990), (9, 886660), (10, 797994), (12, 664995), (15, 531996), (18, 443330), (20, 398997), (30, 265998), (36, 221665), (43, 185580), (45, 177332), (60, 132999), (86, 92790), (90, 88666), (129, 61860), (172, 46395), (180, 44333), (215, 37116), (258, 30930), (387, 20620), (430, 18558), (516, 15465), (645, 12372), (774, 10310), (860, 9279), (1031, 7740), (1290, 6186), (1548, 5155), (1935, 4124), (2062, 3870), (2580, 3093)]