181293153980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2683}}^1\times {\mathrm{78571}}^1$

素因数の和:81306

約数の個数: 48

約数和(自身を含む): 389719634304

約数和(自身を除く): 208426480324

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 2683, 5366, 10732, 13415, 26830, 53660, 78571, 115369, 157142, 230738, 314284, 392855, 461476, 576845, 785710, 1153690, 1571420, 2307380, 3378553, 6757106, 13514212, 16892765, 33785530, 67571060, 210805993, 421611986, 843223972, 1054029965, 2108059930, 4216119860, 9064657699, 18129315398, 36258630796, 45323288495, 90646576990, 181293153980]

約数ペア:

[(1, 181293153980), (2, 90646576990), (4, 45323288495), (5, 36258630796), (10, 18129315398), (20, 9064657699), (43, 4216119860), (86, 2108059930), (172, 1054029965), (215, 843223972), (430, 421611986), (860, 210805993), (2683, 67571060), (5366, 33785530), (10732, 16892765), (13415, 13514212), (26830, 6757106), (53660, 3378553), (78571, 2307380), (115369, 1571420), (157142, 1153690), (230738, 785710), (314284, 576845), (392855, 461476)]