28042020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3623}}^1$

素因数の和:3681

約数の個数: 72

約数和(自身を含む): 87062976

約数和(自身を除く): 59020956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3623, 3870, 7246, 7740, 10869, 14492, 18115, 21738, 32607, 36230, 43476, 54345, 65214, 72460, 108690, 130428, 155789, 163035, 217380, 311578, 326070, 467367, 623156, 652140, 778945, 934734, 1402101, 1557890, 1869468, 2336835, 2804202, 3115780, 4673670, 5608404, 7010505, 9347340, 14021010, 28042020]

約数ペア:

[(1, 28042020), (2, 14021010), (3, 9347340), (4, 7010505), (5, 5608404), (6, 4673670), (9, 3115780), (10, 2804202), (12, 2336835), (15, 1869468), (18, 1557890), (20, 1402101), (30, 934734), (36, 778945), (43, 652140), (45, 623156), (60, 467367), (86, 326070), (90, 311578), (129, 217380), (172, 163035), (180, 155789), (215, 130428), (258, 108690), (387, 72460), (430, 65214), (516, 54345), (645, 43476), (774, 36230), (860, 32607), (1290, 21738), (1548, 18115), (1935, 14492), (2580, 10869), (3623, 7740), (3870, 7246)]