7900020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43889}}^1$

素因数の和:43904

約数の個数: 36

約数和(自身を含む): 23963940

約数和(自身を除く): 16063920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 43889, 87778, 131667, 175556, 219445, 263334, 395001, 438890, 526668, 658335, 790002, 877780, 1316670, 1580004, 1975005, 2633340, 3950010, 7900020]

約数ペア:

[(1, 7900020), (2, 3950010), (3, 2633340), (4, 1975005), (5, 1580004), (6, 1316670), (9, 877780), (10, 790002), (12, 658335), (15, 526668), (18, 438890), (20, 395001), (30, 263334), (36, 219445), (45, 175556), (60, 131667), (90, 87778), (180, 43889)]