71981140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1087}}^1$

素因数の和:1157

約数の個数: 96

約数和(自身を含む): 193019904

約数和(自身を除く): 121038764

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 110, 140, 154, 172, 215, 220, 301, 308, 385, 430, 473, 602, 770, 860, 946, 1087, 1204, 1505, 1540, 1892, 2174, 2365, 3010, 3311, 4348, 4730, 5435, 6020, 6622, 7609, 9460, 10870, 11957, 13244, 15218, 16555, 21740, 23914, 30436, 33110, 38045, 46741, 47828, 59785, 66220, 76090, 83699, 93482, 119570, 152180, 167398, 186964, 233705, 239140, 327187, 334796, 418495, 467410, 514151, 654374, 836990, 934820, 1028302, 1308748, 1635935, 1673980, 2056604, 2570755, 3271870, 3599057, 5141510, 6543740, 7198114, 10283020, 14396228, 17995285, 35990570, 71981140]

約数ペア:

[(1, 71981140), (2, 35990570), (4, 17995285), (5, 14396228), (7, 10283020), (10, 7198114), (11, 6543740), (14, 5141510), (20, 3599057), (22, 3271870), (28, 2570755), (35, 2056604), (43, 1673980), (44, 1635935), (55, 1308748), (70, 1028302), (77, 934820), (86, 836990), (110, 654374), (140, 514151), (154, 467410), (172, 418495), (215, 334796), (220, 327187), (301, 239140), (308, 233705), (385, 186964), (430, 167398), (473, 152180), (602, 119570), (770, 93482), (860, 83699), (946, 76090), (1087, 66220), (1204, 59785), (1505, 47828), (1540, 46741), (1892, 38045), (2174, 33110), (2365, 30436), (3010, 23914), (3311, 21740), (4348, 16555), (4730, 15218), (5435, 13244), (6020, 11957), (6622, 10870), (7609, 9460)]