66420920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{44879}}^1$

素因数の和:44927

約数の個数: 32

約数和(自身を含む): 153489600

約数和(自身を除く): 87068680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 44879, 89758, 179516, 224395, 359032, 448790, 897580, 1660523, 1795160, 3321046, 6642092, 8302615, 13284184, 16605230, 33210460, 66420920]

約数ペア:

[(1, 66420920), (2, 33210460), (4, 16605230), (5, 13284184), (8, 8302615), (10, 6642092), (20, 3321046), (37, 1795160), (40, 1660523), (74, 897580), (148, 448790), (185, 359032), (296, 224395), (370, 179516), (740, 89758), (1480, 44879)]