479440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 1203048

約数和(自身を除く): 723608

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 461, 520, 922, 1040, 1844, 2305, 3688, 4610, 5993, 7376, 9220, 11986, 18440, 23972, 29965, 36880, 47944, 59930, 95888, 119860, 239720, 479440]

約数ペア:

[(1, 479440), (2, 239720), (4, 119860), (5, 95888), (8, 59930), (10, 47944), (13, 36880), (16, 29965), (20, 23972), (26, 18440), (40, 11986), (52, 9220), (65, 7376), (80, 5993), (104, 4610), (130, 3688), (208, 2305), (260, 1844), (461, 1040), (520, 922)]