689957345

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 1058144256

約数和(自身を除く): 368186911

約数列:

[1, 5, 7, 11, 35, 55, 77, 103, 127, 137, 385, 515, 635, 685, 721, 889, 959, 1133, 1397, 1507, 3605, 4445, 4795, 5665, 6985, 7535, 7931, 9779, 10549, 13081, 14111, 17399, 39655, 48895, 52745, 65405, 70555, 86995, 91567, 98777, 121793, 143891, 155221, 191389, 457835, 493885, 608965, 719455, 776105, 956945, 1007237, 1086547, 1339723, 1792097, 5036185, 5432735, 6698615, 8960485, 12544679, 19713067, 62723395, 98565335, 137991469, 689957345]

約数ペア:

[(1, 689957345), (5, 137991469), (7, 98565335), (11, 62723395), (35, 19713067), (55, 12544679), (77, 8960485), (103, 6698615), (127, 5432735), (137, 5036185), (385, 1792097), (515, 1339723), (635, 1086547), (685, 1007237), (721, 956945), (889, 776105), (959, 719455), (1133, 608965), (1397, 493885), (1507, 457835), (3605, 191389), (4445, 155221), (4795, 143891), (5665, 121793), (6985, 98777), (7535, 91567), (7931, 86995), (9779, 70555), (10549, 65405), (13081, 52745), (14111, 48895), (17399, 39655)]