31208840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60017}}^1$

素因数の和:60041

約数の個数: 32

約数和(自身を含む): 75622680

約数和(自身を除く): 44413840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60017, 120034, 240068, 300085, 480136, 600170, 780221, 1200340, 1560442, 2400680, 3120884, 3901105, 6241768, 7802210, 15604420, 31208840]

約数ペア:

[(1, 31208840), (2, 15604420), (4, 7802210), (5, 6241768), (8, 3901105), (10, 3120884), (13, 2400680), (20, 1560442), (26, 1200340), (40, 780221), (52, 600170), (65, 480136), (104, 300085), (130, 240068), (260, 120034), (520, 60017)]