18186940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 40824000

約数和(自身を除く): 22637060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 149, 170, 298, 340, 359, 596, 718, 745, 1436, 1490, 1795, 2533, 2980, 3590, 5066, 6103, 7180, 10132, 12206, 12665, 24412, 25330, 30515, 50660, 53491, 61030, 106982, 122060, 213964, 267455, 534910, 909347, 1069820, 1818694, 3637388, 4546735, 9093470, 18186940]

約数ペア:

[(1, 18186940), (2, 9093470), (4, 4546735), (5, 3637388), (10, 1818694), (17, 1069820), (20, 909347), (34, 534910), (68, 267455), (85, 213964), (149, 122060), (170, 106982), (298, 61030), (340, 53491), (359, 50660), (596, 30515), (718, 25330), (745, 24412), (1436, 12665), (1490, 12206), (1795, 10132), (2533, 7180), (2980, 6103), (3590, 5066)]