239720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 582120

約数和(自身を除く): 342400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 461, 520, 922, 1844, 2305, 3688, 4610, 5993, 9220, 11986, 18440, 23972, 29965, 47944, 59930, 119860, 239720]

約数ペア:

[(1, 239720), (2, 119860), (4, 59930), (5, 47944), (8, 29965), (10, 23972), (13, 18440), (20, 11986), (26, 9220), (40, 5993), (52, 4610), (65, 3688), (104, 2305), (130, 1844), (260, 922), (461, 520)]