38821390

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 71441280

約数和(自身を除く): 32619890

約数列:

[1, 2, 5, 10, 79, 157, 158, 313, 314, 395, 626, 785, 790, 1565, 1570, 3130, 12403, 24727, 24806, 49141, 49454, 62015, 98282, 123635, 124030, 245705, 247270, 491410, 3882139, 7764278, 19410695, 38821390]

約数ペア:

[(1, 38821390), (2, 19410695), (5, 7764278), (10, 3882139), (79, 491410), (157, 247270), (158, 245705), (313, 124030), (314, 123635), (395, 98282), (626, 62015), (785, 49454), (790, 49141), (1565, 24806), (1570, 24727), (3130, 12403)]