245563160

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{19997}}^1$

素因数の和:20315

約数の個数: 32

約数和(自身を含む): 554344560

約数和(自身を除く): 308781400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 19997, 39994, 79988, 99985, 159976, 199970, 399940, 799880, 6139079, 12278158, 24556316, 30695395, 49112632, 61390790, 122781580, 245563160]

約数ペア:

[(1, 245563160), (2, 122781580), (4, 61390790), (5, 49112632), (8, 30695395), (10, 24556316), (20, 12278158), (40, 6139079), (307, 799880), (614, 399940), (1228, 199970), (1535, 159976), (2456, 99985), (3070, 79988), (6140, 39994), (12280, 19997)]