1991390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 3870720

約数和(自身を除く): 1879330

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 223, 235, 446, 470, 893, 1115, 1786, 2230, 4237, 4465, 8474, 8930, 10481, 20962, 21185, 42370, 52405, 104810, 199139, 398278, 995695, 1991390]

約数ペア:

[(1, 1991390), (2, 995695), (5, 398278), (10, 199139), (19, 104810), (38, 52405), (47, 42370), (94, 21185), (95, 20962), (190, 10481), (223, 8930), (235, 8474), (446, 4465), (470, 4237), (893, 2230), (1115, 1786)]