71980108

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 138378240

約数和(自身を除く): 66398132

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 103, 172, 206, 239, 412, 478, 731, 956, 1462, 1751, 2924, 3502, 4063, 4429, 7004, 8126, 8858, 10277, 16252, 17716, 20554, 24617, 41108, 49234, 75293, 98468, 150586, 174709, 301172, 349418, 418489, 698836, 836978, 1058531, 1673956, 2117062, 4234124, 17995027, 35990054, 71980108]

約数ペア:

[(1, 71980108), (2, 35990054), (4, 17995027), (17, 4234124), (34, 2117062), (43, 1673956), (68, 1058531), (86, 836978), (103, 698836), (172, 418489), (206, 349418), (239, 301172), (412, 174709), (478, 150586), (731, 98468), (956, 75293), (1462, 49234), (1751, 41108), (2924, 24617), (3502, 20554), (4063, 17716), (4429, 16252), (7004, 10277), (8126, 8858)]