31080260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 67359600

約数和(自身を除く): 36279340

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 109, 212, 218, 265, 269, 436, 530, 538, 545, 1060, 1076, 1090, 1345, 2180, 2690, 5380, 5777, 11554, 14257, 23108, 28514, 28885, 29321, 57028, 57770, 58642, 71285, 115540, 117284, 142570, 146605, 285140, 293210, 586420, 1554013, 3108026, 6216052, 7770065, 15540130, 31080260]

約数ペア:

[(1, 31080260), (2, 15540130), (4, 7770065), (5, 6216052), (10, 3108026), (20, 1554013), (53, 586420), (106, 293210), (109, 285140), (212, 146605), (218, 142570), (265, 117284), (269, 115540), (436, 71285), (530, 58642), (538, 57770), (545, 57028), (1060, 29321), (1076, 28885), (1090, 28514), (1345, 23108), (2180, 14257), (2690, 11554), (5380, 5777)]