16706680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 39372480

約数和(自身を除く): 22665800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 164, 167, 205, 244, 305, 328, 334, 410, 488, 610, 668, 820, 835, 1220, 1336, 1640, 1670, 2440, 2501, 3340, 5002, 6680, 6847, 10004, 10187, 12505, 13694, 20008, 20374, 25010, 27388, 34235, 40748, 50020, 50935, 54776, 68470, 81496, 100040, 101870, 136940, 203740, 273880, 407480, 417667, 835334, 1670668, 2088335, 3341336, 4176670, 8353340, 16706680]

約数ペア:

[(1, 16706680), (2, 8353340), (4, 4176670), (5, 3341336), (8, 2088335), (10, 1670668), (20, 835334), (40, 417667), (41, 407480), (61, 273880), (82, 203740), (122, 136940), (164, 101870), (167, 100040), (205, 81496), (244, 68470), (305, 54776), (328, 50935), (334, 50020), (410, 40748), (488, 34235), (610, 27388), (668, 25010), (820, 20374), (835, 20008), (1220, 13694), (1336, 12505), (1640, 10187), (1670, 10004), (2440, 6847), (2501, 6680), (3340, 5002)]