640756158

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2\times {\mathrm{223}}^1$

素因数の和:358

約数の個数: 96

約数和(自身を含む): 1546868736

約数和(自身を除く): 906112578

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 43, 74, 86, 111, 129, 222, 223, 258, 259, 301, 446, 518, 602, 669, 777, 903, 1338, 1554, 1561, 1591, 1806, 1849, 3122, 3182, 3698, 4683, 4773, 5547, 8251, 9366, 9546, 9589, 11094, 11137, 12943, 16502, 19178, 22274, 24753, 25886, 28767, 33411, 38829, 49506, 57534, 57757, 66822, 67123, 68413, 77658, 115514, 134246, 136826, 173271, 201369, 205239, 346542, 354793, 402738, 410478, 412327, 478891, 709586, 824654, 957782, 1064379, 1236981, 1436673, 2128758, 2473962, 2483551, 2873346, 2886289, 4967102, 5772578, 7450653, 8658867, 14901306, 15256099, 17317734, 30512198, 45768297, 91536594, 106792693, 213585386, 320378079, 640756158]

約数ペア:

[(1, 640756158), (2, 320378079), (3, 213585386), (6, 106792693), (7, 91536594), (14, 45768297), (21, 30512198), (37, 17317734), (42, 15256099), (43, 14901306), (74, 8658867), (86, 7450653), (111, 5772578), (129, 4967102), (222, 2886289), (223, 2873346), (258, 2483551), (259, 2473962), (301, 2128758), (446, 1436673), (518, 1236981), (602, 1064379), (669, 957782), (777, 824654), (903, 709586), (1338, 478891), (1554, 412327), (1561, 410478), (1591, 402738), (1806, 354793), (1849, 346542), (3122, 205239), (3182, 201369), (3698, 173271), (4683, 136826), (4773, 134246), (5547, 115514), (8251, 77658), (9366, 68413), (9546, 67123), (9589, 66822), (11094, 57757), (11137, 57534), (12943, 49506), (16502, 38829), (19178, 33411), (22274, 28767), (24753, 25886)]