19612640

素因数分解:

$2^5\times 5^1\times {\mathrm{122579}}^1$

素因数の和:122594

約数の個数: 24

約数和(自身を含む): 46335240

約数和(自身を除く): 26722600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 122579, 245158, 490316, 612895, 980632, 1225790, 1961264, 2451580, 3922528, 4903160, 9806320, 19612640]

約数ペア:

[(1, 19612640), (2, 9806320), (4, 4903160), (5, 3922528), (8, 2451580), (10, 1961264), (16, 1225790), (20, 980632), (32, 612895), (40, 490316), (80, 245158), (160, 122579)]