20622020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 46303488

約数和(自身を除く): 25681468

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 131, 170, 262, 340, 463, 524, 655, 926, 1310, 1852, 2227, 2315, 2620, 4454, 4630, 7871, 8908, 9260, 11135, 15742, 22270, 31484, 39355, 44540, 60653, 78710, 121306, 157420, 242612, 303265, 606530, 1031101, 1213060, 2062202, 4124404, 5155505, 10311010, 20622020]

約数ペア:

[(1, 20622020), (2, 10311010), (4, 5155505), (5, 4124404), (10, 2062202), (17, 1213060), (20, 1031101), (34, 606530), (68, 303265), (85, 242612), (131, 157420), (170, 121306), (262, 78710), (340, 60653), (463, 44540), (524, 39355), (655, 31484), (926, 22270), (1310, 15742), (1852, 11135), (2227, 9260), (2315, 8908), (2620, 7871), (4454, 4630)]