129448220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 301644000

約数和(自身を除く): 172195780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 149, 220, 242, 298, 359, 484, 596, 605, 718, 745, 1210, 1436, 1490, 1639, 1795, 2420, 2980, 3278, 3590, 3949, 6556, 7180, 7898, 8195, 15796, 16390, 18029, 19745, 32780, 36058, 39490, 43439, 53491, 72116, 78980, 86878, 90145, 106982, 173756, 180290, 213964, 217195, 267455, 360580, 434390, 534910, 588401, 868780, 1069820, 1176802, 2353604, 2942005, 5884010, 6472411, 11768020, 12944822, 25889644, 32362055, 64724110, 129448220]

約数ペア:

[(1, 129448220), (2, 64724110), (4, 32362055), (5, 25889644), (10, 12944822), (11, 11768020), (20, 6472411), (22, 5884010), (44, 2942005), (55, 2353604), (110, 1176802), (121, 1069820), (149, 868780), (220, 588401), (242, 534910), (298, 434390), (359, 360580), (484, 267455), (596, 217195), (605, 213964), (718, 180290), (745, 173756), (1210, 106982), (1436, 90145), (1490, 86878), (1639, 78980), (1795, 72116), (2420, 53491), (2980, 43439), (3278, 39490), (3590, 36058), (3949, 32780), (6556, 19745), (7180, 18029), (7898, 16390), (8195, 15796)]