64140880

素因数分解:

$2^4\times 5^1\times {\mathrm{801761}}^1$

素因数の和:801774

約数の個数: 20

約数和(自身を含む): 149127732

約数和(自身を除く): 84986852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 801761, 1603522, 3207044, 4008805, 6414088, 8017610, 12828176, 16035220, 32070440, 64140880]

約数ペア:

[(1, 64140880), (2, 32070440), (4, 16035220), (5, 12828176), (8, 8017610), (10, 6414088), (16, 4008805), (20, 3207044), (40, 1603522), (80, 801761)]