20313760

素因数分解:

$2^5\times 5^1\times {\mathrm{126961}}^1$

素因数の和:126976

約数の個数: 24

約数和(自身を含む): 47991636

約数和(自身を除く): 27677876

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 126961, 253922, 507844, 634805, 1015688, 1269610, 2031376, 2539220, 4062752, 5078440, 10156880, 20313760]

約数ペア:

[(1, 20313760), (2, 10156880), (4, 5078440), (5, 4062752), (8, 2539220), (10, 2031376), (16, 1269610), (20, 1015688), (32, 634805), (40, 507844), (80, 253922), (160, 126961)]