61787740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{4049}}^1$

素因数の和:4174

約数の個数: 48

約数和(自身を含む): 149688000

約数和(自身を除く): 87900260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 4049, 7630, 8098, 15260, 16196, 20245, 28343, 40490, 56686, 80980, 113372, 141715, 283430, 441341, 566860, 882682, 1765364, 2206705, 3089387, 4413410, 6178774, 8826820, 12357548, 15446935, 30893870, 61787740]

約数ペア:

[(1, 61787740), (2, 30893870), (4, 15446935), (5, 12357548), (7, 8826820), (10, 6178774), (14, 4413410), (20, 3089387), (28, 2206705), (35, 1765364), (70, 882682), (109, 566860), (140, 441341), (218, 283430), (436, 141715), (545, 113372), (763, 80980), (1090, 56686), (1526, 40490), (2180, 28343), (3052, 20245), (3815, 16196), (4049, 15260), (7630, 8098)]