80259920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{337}}^1$

素因数の和:592

約数の個数: 80

約数和(自身を含む): 202434960

約数和(自身を除く): 122175040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 229, 260, 337, 458, 520, 674, 916, 1040, 1145, 1348, 1685, 1832, 2290, 2696, 2977, 3370, 3664, 4381, 4580, 5392, 5954, 6740, 8762, 9160, 11908, 13480, 14885, 17524, 18320, 21905, 23816, 26960, 29770, 35048, 43810, 47632, 59540, 70096, 77173, 87620, 119080, 154346, 175240, 238160, 308692, 350480, 385865, 617384, 771730, 1003249, 1234768, 1543460, 2006498, 3086920, 4012996, 5016245, 6173840, 8025992, 10032490, 16051984, 20064980, 40129960, 80259920]

約数ペア:

[(1, 80259920), (2, 40129960), (4, 20064980), (5, 16051984), (8, 10032490), (10, 8025992), (13, 6173840), (16, 5016245), (20, 4012996), (26, 3086920), (40, 2006498), (52, 1543460), (65, 1234768), (80, 1003249), (104, 771730), (130, 617384), (208, 385865), (229, 350480), (260, 308692), (337, 238160), (458, 175240), (520, 154346), (674, 119080), (916, 87620), (1040, 77173), (1145, 70096), (1348, 59540), (1685, 47632), (1832, 43810), (2290, 35048), (2696, 29770), (2977, 26960), (3370, 23816), (3664, 21905), (4381, 18320), (4580, 17524), (5392, 14885), (5954, 13480), (6740, 11908), (8762, 9160)]