20184375440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{143111}}^1$

素因数の和:143208

約数の個数: 80

約数和(自身を含む): 49191601536

約数和(自身を除く): 29007226096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 656, 688, 820, 860, 1640, 1720, 1763, 3280, 3440, 3526, 7052, 8815, 14104, 17630, 28208, 35260, 70520, 141040, 143111, 286222, 572444, 715555, 1144888, 1431110, 2289776, 2862220, 5724440, 5867551, 6153773, 11448880, 11735102, 12307546, 23470204, 24615092, 29337755, 30768865, 46940408, 49230184, 58675510, 61537730, 93880816, 98460368, 117351020, 123075460, 234702040, 246150920, 252304693, 469404080, 492301840, 504609386, 1009218772, 1261523465, 2018437544, 2523046930, 4036875088, 5046093860, 10092187720, 20184375440]

約数ペア:

[(1, 20184375440), (2, 10092187720), (4, 5046093860), (5, 4036875088), (8, 2523046930), (10, 2018437544), (16, 1261523465), (20, 1009218772), (40, 504609386), (41, 492301840), (43, 469404080), (80, 252304693), (82, 246150920), (86, 234702040), (164, 123075460), (172, 117351020), (205, 98460368), (215, 93880816), (328, 61537730), (344, 58675510), (410, 49230184), (430, 46940408), (656, 30768865), (688, 29337755), (820, 24615092), (860, 23470204), (1640, 12307546), (1720, 11735102), (1763, 11448880), (3280, 6153773), (3440, 5867551), (3526, 5724440), (7052, 2862220), (8815, 2289776), (14104, 1431110), (17630, 1144888), (28208, 715555), (35260, 572444), (70520, 286222), (141040, 143111)]