20654140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 50944320

約数和(自身を除く): 30290180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 37, 38, 52, 65, 74, 76, 95, 113, 130, 148, 185, 190, 226, 247, 260, 370, 380, 452, 481, 494, 565, 703, 740, 962, 988, 1130, 1235, 1406, 1469, 1924, 2147, 2260, 2405, 2470, 2812, 2938, 3515, 4181, 4294, 4810, 4940, 5876, 7030, 7345, 8362, 8588, 9139, 9620, 10735, 14060, 14690, 16724, 18278, 20905, 21470, 27911, 29380, 36556, 41810, 42940, 45695, 54353, 55822, 79439, 83620, 91390, 108706, 111644, 139555, 158878, 182780, 217412, 271765, 279110, 317756, 397195, 543530, 558220, 794390, 1032707, 1087060, 1588780, 2065414, 4130828, 5163535, 10327070, 20654140]

約数ペア:

[(1, 20654140), (2, 10327070), (4, 5163535), (5, 4130828), (10, 2065414), (13, 1588780), (19, 1087060), (20, 1032707), (26, 794390), (37, 558220), (38, 543530), (52, 397195), (65, 317756), (74, 279110), (76, 271765), (95, 217412), (113, 182780), (130, 158878), (148, 139555), (185, 111644), (190, 108706), (226, 91390), (247, 83620), (260, 79439), (370, 55822), (380, 54353), (452, 45695), (481, 42940), (494, 41810), (565, 36556), (703, 29380), (740, 27911), (962, 21470), (988, 20905), (1130, 18278), (1235, 16724), (1406, 14690), (1469, 14060), (1924, 10735), (2147, 9620), (2260, 9139), (2405, 8588), (2470, 8362), (2812, 7345), (2938, 7030), (3515, 5876), (4181, 4940), (4294, 4810)]