80608580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{797}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 182997360

約数和(自身を除く): 102388780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 389, 778, 797, 1556, 1594, 1945, 3188, 3890, 3985, 5057, 7780, 7970, 10114, 10361, 15940, 20228, 20722, 25285, 41444, 50570, 51805, 101140, 103610, 207220, 310033, 620066, 1240132, 1550165, 3100330, 4030429, 6200660, 8060858, 16121716, 20152145, 40304290, 80608580]

約数ペア:

[(1, 80608580), (2, 40304290), (4, 20152145), (5, 16121716), (10, 8060858), (13, 6200660), (20, 4030429), (26, 3100330), (52, 1550165), (65, 1240132), (130, 620066), (260, 310033), (389, 207220), (778, 103610), (797, 101140), (1556, 51805), (1594, 50570), (1945, 41444), (3188, 25285), (3890, 20722), (3985, 20228), (5057, 15940), (7780, 10361), (7970, 10114)]