15843220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^2$

素因数の和:328

約数の個数: 36

約数和(自身を含む): 34329204

約数和(自身を除く): 18485984

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 139, 164, 205, 278, 410, 556, 695, 820, 1390, 2780, 5699, 11398, 19321, 22796, 28495, 38642, 56990, 77284, 96605, 113980, 193210, 386420, 792161, 1584322, 3168644, 3960805, 7921610, 15843220]

約数ペア:

[(1, 15843220), (2, 7921610), (4, 3960805), (5, 3168644), (10, 1584322), (20, 792161), (41, 386420), (82, 193210), (139, 113980), (164, 96605), (205, 77284), (278, 56990), (410, 38642), (556, 28495), (695, 22796), (820, 19321), (1390, 11398), (2780, 5699)]