4153780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 9737280

約数和(自身を除く): 5583500

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 643, 646, 1286, 1292, 1615, 2572, 3215, 3230, 6430, 6460, 10931, 12217, 12860, 21862, 24434, 43724, 48868, 54655, 61085, 109310, 122170, 207689, 218620, 244340, 415378, 830756, 1038445, 2076890, 4153780]

約数ペア:

[(1, 4153780), (2, 2076890), (4, 1038445), (5, 830756), (10, 415378), (17, 244340), (19, 218620), (20, 207689), (34, 122170), (38, 109310), (68, 61085), (76, 54655), (85, 48868), (95, 43724), (170, 24434), (190, 21862), (323, 12860), (340, 12217), (380, 10931), (643, 6460), (646, 6430), (1286, 3230), (1292, 3215), (1615, 2572)]