2659980

素因数分解:

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

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 7628544

約数和(自身を除く): 4968564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1031, 1290, 2062, 2580, 3093, 4124, 5155, 6186, 10310, 12372, 15465, 20620, 30930, 44333, 61860, 88666, 132999, 177332, 221665, 265998, 443330, 531996, 664995, 886660, 1329990, 2659980]

約数ペア:

[(1, 2659980), (2, 1329990), (3, 886660), (4, 664995), (5, 531996), (6, 443330), (10, 265998), (12, 221665), (15, 177332), (20, 132999), (30, 88666), (43, 61860), (60, 44333), (86, 30930), (129, 20620), (172, 15465), (215, 12372), (258, 10310), (430, 6186), (516, 5155), (645, 4124), (860, 3093), (1031, 2580), (1290, 2062)]