20926660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 47340720

約数和(自身を除く): 26414060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 1009, 1037, 1220, 2018, 2074, 4036, 4148, 5045, 5185, 10090, 10370, 17153, 20180, 20740, 34306, 61549, 68612, 85765, 123098, 171530, 246196, 307745, 343060, 615490, 1046333, 1230980, 2092666, 4185332, 5231665, 10463330, 20926660]

約数ペア:

[(1, 20926660), (2, 10463330), (4, 5231665), (5, 4185332), (10, 2092666), (17, 1230980), (20, 1046333), (34, 615490), (61, 343060), (68, 307745), (85, 246196), (122, 171530), (170, 123098), (244, 85765), (305, 68612), (340, 61549), (610, 34306), (1009, 20740), (1037, 20180), (1220, 17153), (2018, 10370), (2074, 10090), (4036, 5185), (4148, 5045)]