2173640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1109}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 5694300

約数和(自身を除く): 3520660

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1109, 1960, 2218, 4436, 5545, 7763, 8872, 11090, 15526, 22180, 31052, 38815, 44360, 54341, 62104, 77630, 108682, 155260, 217364, 271705, 310520, 434728, 543410, 1086820, 2173640]

約数ペア:

[(1, 2173640), (2, 1086820), (4, 543410), (5, 434728), (7, 310520), (8, 271705), (10, 217364), (14, 155260), (20, 108682), (28, 77630), (35, 62104), (40, 54341), (49, 44360), (56, 38815), (70, 31052), (98, 22180), (140, 15526), (196, 11090), (245, 8872), (280, 7763), (392, 5545), (490, 4436), (980, 2218), (1109, 1960)]