217090180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{1471}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 468873216

約数和(自身を除く): 251783036

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 157, 188, 235, 314, 470, 628, 785, 940, 1471, 1570, 2942, 3140, 5884, 7355, 7379, 14710, 14758, 29420, 29516, 36895, 69137, 73790, 138274, 147580, 230947, 276548, 345685, 461894, 691370, 923788, 1154735, 1382740, 2309470, 4618940, 10854509, 21709018, 43418036, 54272545, 108545090, 217090180]

約数ペア:

[(1, 217090180), (2, 108545090), (4, 54272545), (5, 43418036), (10, 21709018), (20, 10854509), (47, 4618940), (94, 2309470), (157, 1382740), (188, 1154735), (235, 923788), (314, 691370), (470, 461894), (628, 345685), (785, 276548), (940, 230947), (1471, 147580), (1570, 138274), (2942, 73790), (3140, 69137), (5884, 36895), (7355, 29516), (7379, 29420), (14710, 14758)]