218490620

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 465847200

約数和(自身を除く): 247356580

約数列:

[1, 2, 4, 5, 10, 20, 149, 157, 298, 314, 467, 596, 628, 745, 785, 934, 1490, 1570, 1868, 2335, 2980, 3140, 4670, 9340, 23393, 46786, 69583, 73319, 93572, 116965, 139166, 146638, 233930, 278332, 293276, 347915, 366595, 467860, 695830, 733190, 1391660, 1466380, 10924531, 21849062, 43698124, 54622655, 109245310, 218490620]

約数ペア:

[(1, 218490620), (2, 109245310), (4, 54622655), (5, 43698124), (10, 21849062), (20, 10924531), (149, 1466380), (157, 1391660), (298, 733190), (314, 695830), (467, 467860), (596, 366595), (628, 347915), (745, 293276), (785, 278332), (934, 233930), (1490, 146638), (1570, 139166), (1868, 116965), (2335, 93572), (2980, 73319), (3140, 69583), (4670, 46786), (9340, 23393)]