129641720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249311}}^1$

素因数の和:249335

約数の個数: 32

約数和(自身を含む): 314133120

約数和(自身を除く): 184491400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 249311, 498622, 997244, 1246555, 1994488, 2493110, 3241043, 4986220, 6482086, 9972440, 12964172, 16205215, 25928344, 32410430, 64820860, 129641720]

約数ペア:

[(1, 129641720), (2, 64820860), (4, 32410430), (5, 25928344), (8, 16205215), (10, 12964172), (13, 9972440), (20, 6482086), (26, 4986220), (40, 3241043), (52, 2493110), (65, 1994488), (104, 1246555), (130, 997244), (260, 498622), (520, 249311)]