252985720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{486511}}^1$

素因数の和:486535

約数の個数: 32

約数和(自身を含む): 613005120

約数和(自身を除く): 360019400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 486511, 973022, 1946044, 2432555, 3892088, 4865110, 6324643, 9730220, 12649286, 19460440, 25298572, 31623215, 50597144, 63246430, 126492860, 252985720]

約数ペア:

[(1, 252985720), (2, 126492860), (4, 63246430), (5, 50597144), (8, 31623215), (10, 25298572), (13, 19460440), (20, 12649286), (26, 9730220), (40, 6324643), (52, 4865110), (65, 3892088), (104, 2432555), (130, 1946044), (260, 973022), (520, 486511)]