102739220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 219872016

約数和(自身を除く): 117132796

約数列:

[1, 2, 4, 5, 10, 20, 101, 181, 202, 281, 362, 404, 505, 562, 724, 905, 1010, 1124, 1405, 1810, 2020, 2810, 3620, 5620, 18281, 28381, 36562, 50861, 56762, 73124, 91405, 101722, 113524, 141905, 182810, 203444, 254305, 283810, 365620, 508610, 567620, 1017220, 5136961, 10273922, 20547844, 25684805, 51369610, 102739220]

約数ペア:

[(1, 102739220), (2, 51369610), (4, 25684805), (5, 20547844), (10, 10273922), (20, 5136961), (101, 1017220), (181, 567620), (202, 508610), (281, 365620), (362, 283810), (404, 254305), (505, 203444), (562, 182810), (724, 141905), (905, 113524), (1010, 101722), (1124, 91405), (1405, 73124), (1810, 56762), (2020, 50861), (2810, 36562), (3620, 28381), (5620, 18281)]