20645300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15881}}^1$

素因数の和:15908

約数の個数: 36

約数和(自身を含む): 48249516

約数和(自身を除く): 27604216

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15881, 31762, 63524, 79405, 158810, 206453, 317620, 397025, 412906, 794050, 825812, 1032265, 1588100, 2064530, 4129060, 5161325, 10322650, 20645300]

約数ペア:

[(1, 20645300), (2, 10322650), (4, 5161325), (5, 4129060), (10, 2064530), (13, 1588100), (20, 1032265), (25, 825812), (26, 794050), (50, 412906), (52, 397025), (65, 317620), (100, 206453), (130, 158810), (260, 79405), (325, 63524), (650, 31762), (1300, 15881)]