31259140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{12917}}^1$

素因数の和:12948

約数の個数: 36

約数和(自身を含む): 72159948

約数和(自身を除く): 40900808

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 12917, 25834, 51668, 64585, 129170, 142087, 258340, 284174, 568348, 710435, 1420870, 1562957, 2841740, 3125914, 6251828, 7814785, 15629570, 31259140]

約数ペア:

[(1, 31259140), (2, 15629570), (4, 7814785), (5, 6251828), (10, 3125914), (11, 2841740), (20, 1562957), (22, 1420870), (44, 710435), (55, 568348), (110, 284174), (121, 258340), (220, 142087), (242, 129170), (484, 64585), (605, 51668), (1210, 25834), (2420, 12917)]