20151340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{757}}^1$

素因数の和:799

約数の個数: 48

約数和(自身を含む): 46607904

約数和(自身を除く): 26456564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 757, 1210, 1331, 1514, 2420, 2662, 3028, 3785, 5324, 6655, 7570, 8327, 13310, 15140, 16654, 26620, 33308, 41635, 83270, 91597, 166540, 183194, 366388, 457985, 915970, 1007567, 1831940, 2015134, 4030268, 5037835, 10075670, 20151340]

約数ペア:

[(1, 20151340), (2, 10075670), (4, 5037835), (5, 4030268), (10, 2015134), (11, 1831940), (20, 1007567), (22, 915970), (44, 457985), (55, 366388), (110, 183194), (121, 166540), (220, 91597), (242, 83270), (484, 41635), (605, 33308), (757, 26620), (1210, 16654), (1331, 15140), (1514, 13310), (2420, 8327), (2662, 7570), (3028, 6655), (3785, 5324)]