201556540

素因数分解:

$2^2\times 5^1\times {\mathrm{1723}}^1\times {\mathrm{5849}}^1$

素因数の和:7581

約数の個数: 24

約数和(自身を含む): 423586800

約数和(自身を除く): 222030260

約数列:

[1, 2, 4, 5, 10, 20, 1723, 3446, 5849, 6892, 8615, 11698, 17230, 23396, 29245, 34460, 58490, 116980, 10077827, 20155654, 40311308, 50389135, 100778270, 201556540]

約数ペア:

[(1, 201556540), (2, 100778270), (4, 50389135), (5, 40311308), (10, 20155654), (20, 10077827), (1723, 116980), (3446, 58490), (5849, 34460), (6892, 29245), (8615, 23396), (11698, 17230)]