199909868

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 391910400

約数和(自身を除く): 192000532

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 359, 431, 646, 718, 862, 1292, 1436, 1724, 6103, 6821, 7327, 8189, 12206, 13642, 14654, 16378, 24412, 27284, 29308, 32756, 115957, 139213, 154729, 231914, 278426, 309458, 463828, 556852, 618916, 2630393, 2939851, 5260786, 5879702, 10521572, 11759404, 49977467, 99954934, 199909868]

約数ペア:

[(1, 199909868), (2, 99954934), (4, 49977467), (17, 11759404), (19, 10521572), (34, 5879702), (38, 5260786), (68, 2939851), (76, 2630393), (323, 618916), (359, 556852), (431, 463828), (646, 309458), (718, 278426), (862, 231914), (1292, 154729), (1436, 139213), (1724, 115957), (6103, 32756), (6821, 29308), (7327, 27284), (8189, 24412), (12206, 16378), (13642, 14654)]