71231240

素因数分解:

$2^3\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{1373}}^1$

素因数の和:2681

約数の個数: 32

約数和(自身を含む): 160510680

約数和(自身を除く): 89279440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1297, 1373, 2594, 2746, 5188, 5492, 6485, 6865, 10376, 10984, 12970, 13730, 25940, 27460, 51880, 54920, 1780781, 3561562, 7123124, 8903905, 14246248, 17807810, 35615620, 71231240]

約数ペア:

[(1, 71231240), (2, 35615620), (4, 17807810), (5, 14246248), (8, 8903905), (10, 7123124), (20, 3561562), (40, 1780781), (1297, 54920), (1373, 51880), (2594, 27460), (2746, 25940), (5188, 13730), (5492, 12970), (6485, 10984), (6865, 10376)]