1820702970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{71993}}^1$

素因数の和:72287

約数の個数: 48

約数和(自身を含む): 4750740072

約数和(自身を除く): 2930037102

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 281, 562, 843, 1405, 1686, 2529, 2810, 4215, 5058, 8430, 12645, 25290, 71993, 143986, 215979, 359965, 431958, 647937, 719930, 1079895, 1295874, 2159790, 3239685, 6479370, 20230033, 40460066, 60690099, 101150165, 121380198, 182070297, 202300330, 303450495, 364140594, 606900990, 910351485, 1820702970]

約数ペア:

[(1, 1820702970), (2, 910351485), (3, 606900990), (5, 364140594), (6, 303450495), (9, 202300330), (10, 182070297), (15, 121380198), (18, 101150165), (30, 60690099), (45, 40460066), (90, 20230033), (281, 6479370), (562, 3239685), (843, 2159790), (1405, 1295874), (1686, 1079895), (2529, 719930), (2810, 647937), (4215, 431958), (5058, 359965), (8430, 215979), (12645, 143986), (25290, 71993)]