20177887720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1\times {\mathrm{38747}}^1$

素因数の和:39082

約数の個数: 64

約数和(自身を含む): 46534798080

約数和(自身を除く): 26356910360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 277, 376, 470, 554, 940, 1108, 1385, 1880, 2216, 2770, 5540, 11080, 13019, 26038, 38747, 52076, 65095, 77494, 104152, 130190, 154988, 193735, 260380, 309976, 387470, 520760, 774940, 1549880, 1821109, 3642218, 7284436, 9105545, 10732919, 14568872, 18211090, 21465838, 36422180, 42931676, 53664595, 72844360, 85863352, 107329190, 214658380, 429316760, 504447193, 1008894386, 2017788772, 2522235965, 4035577544, 5044471930, 10088943860, 20177887720]

約数ペア:

[(1, 20177887720), (2, 10088943860), (4, 5044471930), (5, 4035577544), (8, 2522235965), (10, 2017788772), (20, 1008894386), (40, 504447193), (47, 429316760), (94, 214658380), (188, 107329190), (235, 85863352), (277, 72844360), (376, 53664595), (470, 42931676), (554, 36422180), (940, 21465838), (1108, 18211090), (1385, 14568872), (1880, 10732919), (2216, 9105545), (2770, 7284436), (5540, 3642218), (11080, 1821109), (13019, 1549880), (26038, 774940), (38747, 520760), (52076, 387470), (65095, 309976), (77494, 260380), (104152, 193735), (130190, 154988)]