168679780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1213}}^1$

素因数の和:1648

約数の個数: 48

約数和(自身を含む): 376291440

約数和(自身を除く): 207611660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 409, 818, 1213, 1636, 2045, 2426, 4090, 4852, 6065, 6953, 8180, 12130, 13906, 20621, 24260, 27812, 34765, 41242, 69530, 82484, 103105, 139060, 206210, 412420, 496117, 992234, 1984468, 2480585, 4961170, 8433989, 9922340, 16867978, 33735956, 42169945, 84339890, 168679780]

約数ペア:

[(1, 168679780), (2, 84339890), (4, 42169945), (5, 33735956), (10, 16867978), (17, 9922340), (20, 8433989), (34, 4961170), (68, 2480585), (85, 1984468), (170, 992234), (340, 496117), (409, 412420), (818, 206210), (1213, 139060), (1636, 103105), (2045, 82484), (2426, 69530), (4090, 41242), (4852, 34765), (6065, 27812), (6953, 24260), (8180, 20621), (12130, 13906)]