72260920

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{8101}}^1$

素因数の和:8335

約数の個数: 32

約数和(自身を含む): 163336320

約数和(自身を除く): 91075400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8101, 8920, 16202, 32404, 40505, 64808, 81010, 162020, 324040, 1806523, 3613046, 7226092, 9032615, 14452184, 18065230, 36130460, 72260920]

約数ペア:

[(1, 72260920), (2, 36130460), (4, 18065230), (5, 14452184), (8, 9032615), (10, 7226092), (20, 3613046), (40, 1806523), (223, 324040), (446, 162020), (892, 81010), (1115, 64808), (1784, 40505), (2230, 32404), (4460, 16202), (8101, 8920)]