80266940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2221}}^1$

素因数の和:2382

約数の個数: 48

約数和(自身を含む): 182915040

約数和(自身を除く): 102648100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2221, 2780, 3614, 4442, 7228, 8884, 9035, 11105, 18070, 22210, 28873, 36140, 44420, 57746, 115492, 144365, 288730, 308719, 577460, 617438, 1234876, 1543595, 3087190, 4013347, 6174380, 8026694, 16053388, 20066735, 40133470, 80266940]

約数ペア:

[(1, 80266940), (2, 40133470), (4, 20066735), (5, 16053388), (10, 8026694), (13, 6174380), (20, 4013347), (26, 3087190), (52, 1543595), (65, 1234876), (130, 617438), (139, 577460), (260, 308719), (278, 288730), (556, 144365), (695, 115492), (1390, 57746), (1807, 44420), (2221, 36140), (2780, 28873), (3614, 22210), (4442, 18070), (7228, 11105), (8884, 9035)]