20495262

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 45745920

約数和(自身を除く): 25250658

約数列:

[1, 2, 3, 6, 19, 37, 38, 43, 57, 74, 86, 111, 113, 114, 129, 222, 226, 258, 339, 678, 703, 817, 1406, 1591, 1634, 2109, 2147, 2451, 3182, 4181, 4218, 4294, 4773, 4859, 4902, 6441, 8362, 9546, 9718, 12543, 12882, 14577, 25086, 29154, 30229, 60458, 79439, 90687, 92321, 158878, 179783, 181374, 184642, 238317, 276963, 359566, 476634, 539349, 553926, 1078698, 3415877, 6831754, 10247631, 20495262]

約数ペア:

[(1, 20495262), (2, 10247631), (3, 6831754), (6, 3415877), (19, 1078698), (37, 553926), (38, 539349), (43, 476634), (57, 359566), (74, 276963), (86, 238317), (111, 184642), (113, 181374), (114, 179783), (129, 158878), (222, 92321), (226, 90687), (258, 79439), (339, 60458), (678, 30229), (703, 29154), (817, 25086), (1406, 14577), (1591, 12882), (1634, 12543), (2109, 9718), (2147, 9546), (2451, 8362), (3182, 6441), (4181, 4902), (4218, 4859), (4294, 4773)]