81289688

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{433}}^1\times {\mathrm{757}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 157906560

約数和(自身を除く): 76616872

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 433, 757, 866, 1514, 1732, 3028, 3464, 6056, 13423, 23467, 26846, 46934, 53692, 93868, 107384, 187736, 327781, 655562, 1311124, 2622248, 10161211, 20322422, 40644844, 81289688]

約数ペア:

[(1, 81289688), (2, 40644844), (4, 20322422), (8, 10161211), (31, 2622248), (62, 1311124), (124, 655562), (248, 327781), (433, 187736), (757, 107384), (866, 93868), (1514, 53692), (1732, 46934), (3028, 26846), (3464, 23467), (6056, 13423)]