1620520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 4147200

約数和(自身を除く): 2526680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 127, 145, 220, 232, 254, 290, 319, 440, 508, 580, 635, 638, 1016, 1160, 1270, 1276, 1397, 1595, 2540, 2552, 2794, 3190, 3683, 5080, 5588, 6380, 6985, 7366, 11176, 12760, 13970, 14732, 18415, 27940, 29464, 36830, 40513, 55880, 73660, 81026, 147320, 162052, 202565, 324104, 405130, 810260, 1620520]

約数ペア:

[(1, 1620520), (2, 810260), (4, 405130), (5, 324104), (8, 202565), (10, 162052), (11, 147320), (20, 81026), (22, 73660), (29, 55880), (40, 40513), (44, 36830), (55, 29464), (58, 27940), (88, 18415), (110, 14732), (116, 13970), (127, 12760), (145, 11176), (220, 7366), (232, 6985), (254, 6380), (290, 5588), (319, 5080), (440, 3683), (508, 3190), (580, 2794), (635, 2552), (638, 2540), (1016, 1595), (1160, 1397), (1270, 1276)]