65328520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{23003}}^1$

素因数の和:23085

約数の個数: 32

約数和(自身を含む): 149065920

約数和(自身を除く): 83737400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 23003, 46006, 92012, 115015, 184024, 230030, 460060, 920120, 1633213, 3266426, 6532852, 8166065, 13065704, 16332130, 32664260, 65328520]

約数ペア:

[(1, 65328520), (2, 32664260), (4, 16332130), (5, 13065704), (8, 8166065), (10, 6532852), (20, 3266426), (40, 1633213), (71, 920120), (142, 460060), (284, 230030), (355, 184024), (568, 115015), (710, 92012), (1420, 46006), (2840, 23003)]