138755540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8191}}^1$

素因数の和:8229

約数の個数: 72

約数和(自身を含む): 366084096

約数和(自身を除く): 227328556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8191, 8470, 16382, 16940, 32764, 40955, 57337, 81910, 90101, 114674, 163820, 180202, 229348, 286685, 360404, 450505, 573370, 630707, 901010, 991111, 1146740, 1261414, 1802020, 1982222, 2522828, 3153535, 3964444, 4955555, 6307070, 6937777, 9911110, 12614140, 13875554, 19822220, 27751108, 34688885, 69377770, 138755540]

約数ペア:

[(1, 138755540), (2, 69377770), (4, 34688885), (5, 27751108), (7, 19822220), (10, 13875554), (11, 12614140), (14, 9911110), (20, 6937777), (22, 6307070), (28, 4955555), (35, 3964444), (44, 3153535), (55, 2522828), (70, 1982222), (77, 1802020), (110, 1261414), (121, 1146740), (140, 991111), (154, 901010), (220, 630707), (242, 573370), (308, 450505), (385, 360404), (484, 286685), (605, 229348), (770, 180202), (847, 163820), (1210, 114674), (1540, 90101), (1694, 81910), (2420, 57337), (3388, 40955), (4235, 32764), (8191, 16940), (8470, 16382)]