127989220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{63361}}^1$

素因数の和:63471

約数の個数: 24

約数和(自身を含む): 271442808

約数和(自身を除く): 143453588

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 63361, 126722, 253444, 316805, 633610, 1267220, 6399461, 12798922, 25597844, 31997305, 63994610, 127989220]

約数ペア:

[(1, 127989220), (2, 63994610), (4, 31997305), (5, 25597844), (10, 12798922), (20, 6399461), (101, 1267220), (202, 633610), (404, 316805), (505, 253444), (1010, 126722), (2020, 63361)]