81339180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104281}}^1$

素因数の和:104306

約数の個数: 48

約数和(自身を含む): 245271264

約数和(自身を除く): 163932084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104281, 208562, 312843, 417124, 521405, 625686, 1042810, 1251372, 1355653, 1564215, 2085620, 2711306, 3128430, 4066959, 5422612, 6256860, 6778265, 8133918, 13556530, 16267836, 20334795, 27113060, 40669590, 81339180]

約数ペア:

[(1, 81339180), (2, 40669590), (3, 27113060), (4, 20334795), (5, 16267836), (6, 13556530), (10, 8133918), (12, 6778265), (13, 6256860), (15, 5422612), (20, 4066959), (26, 3128430), (30, 2711306), (39, 2085620), (52, 1564215), (60, 1355653), (65, 1251372), (78, 1042810), (130, 625686), (156, 521405), (195, 417124), (260, 312843), (390, 208562), (780, 104281)]