18172040

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3049}}^1$

素因数の和:3209

約数の個数: 32

約数和(自身を含む): 41175000

約数和(自身を除く): 23002960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3049, 5960, 6098, 12196, 15245, 24392, 30490, 60980, 121960, 454301, 908602, 1817204, 2271505, 3634408, 4543010, 9086020, 18172040]

約数ペア:

[(1, 18172040), (2, 9086020), (4, 4543010), (5, 3634408), (8, 2271505), (10, 1817204), (20, 908602), (40, 454301), (149, 121960), (298, 60980), (596, 30490), (745, 24392), (1192, 15245), (1490, 12196), (2980, 6098), (3049, 5960)]