64231240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21997}}^1$

素因数の和:22081

約数の個数: 32

約数和(自身を含む): 146506680

約数和(自身を除く): 82275440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 21997, 43994, 87988, 109985, 175976, 219970, 439940, 879880, 1605781, 3211562, 6423124, 8028905, 12846248, 16057810, 32115620, 64231240]

約数ペア:

[(1, 64231240), (2, 32115620), (4, 16057810), (5, 12846248), (8, 8028905), (10, 6423124), (20, 3211562), (40, 1605781), (73, 879880), (146, 439940), (292, 219970), (365, 175976), (584, 109985), (730, 87988), (1460, 43994), (2920, 21997)]