81298380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31511}}^1$

素因数の和:31566

約数の個数: 48

約数和(自身を含む): 232936704

約数和(自身を除く): 151638324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 31511, 63022, 94533, 126044, 157555, 189066, 315110, 378132, 472665, 630220, 945330, 1354973, 1890660, 2709946, 4064919, 5419892, 6774865, 8129838, 13549730, 16259676, 20324595, 27099460, 40649190, 81298380]

約数ペア:

[(1, 81298380), (2, 40649190), (3, 27099460), (4, 20324595), (5, 16259676), (6, 13549730), (10, 8129838), (12, 6774865), (15, 5419892), (20, 4064919), (30, 2709946), (43, 1890660), (60, 1354973), (86, 945330), (129, 630220), (172, 472665), (215, 378132), (258, 315110), (430, 189066), (516, 157555), (645, 126044), (860, 94533), (1290, 63022), (2580, 31511)]