20872730

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{601}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 39529728

約数和(自身を除く): 18656998

約数列:

[1, 2, 5, 10, 23, 46, 115, 151, 230, 302, 601, 755, 1202, 1510, 3005, 3473, 6010, 6946, 13823, 17365, 27646, 34730, 69115, 90751, 138230, 181502, 453755, 907510, 2087273, 4174546, 10436365, 20872730]

約数ペア:

[(1, 20872730), (2, 10436365), (5, 4174546), (10, 2087273), (23, 907510), (46, 453755), (115, 181502), (151, 138230), (230, 90751), (302, 69115), (601, 34730), (755, 27646), (1202, 17365), (1510, 13823), (3005, 6946), (3473, 6010)]