1812560

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:315

約数の個数: 40

約数和(自身を含む): 4270560

約数和(自身を除く): 2458000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 163, 278, 326, 556, 652, 695, 815, 1112, 1304, 1390, 1630, 2224, 2608, 2780, 3260, 5560, 6520, 11120, 13040, 22657, 45314, 90628, 113285, 181256, 226570, 362512, 453140, 906280, 1812560]

約数ペア:

[(1, 1812560), (2, 906280), (4, 453140), (5, 362512), (8, 226570), (10, 181256), (16, 113285), (20, 90628), (40, 45314), (80, 22657), (139, 13040), (163, 11120), (278, 6520), (326, 5560), (556, 3260), (652, 2780), (695, 2608), (815, 2224), (1112, 1630), (1304, 1390)]