261882810

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{415687}}^1$

素因数の和:415707

約数の個数: 48

約数和(自身を含む): 778167936

約数和(自身を除く): 516285126

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 415687, 831374, 1247061, 2078435, 2494122, 2909809, 3741183, 4156870, 5819618, 6235305, 7482366, 8729427, 12470610, 14549045, 17458854, 18705915, 26188281, 29098090, 37411830, 43647135, 52376562, 87294270, 130941405, 261882810]

約数ペア:

[(1, 261882810), (2, 130941405), (3, 87294270), (5, 52376562), (6, 43647135), (7, 37411830), (9, 29098090), (10, 26188281), (14, 18705915), (15, 17458854), (18, 14549045), (21, 12470610), (30, 8729427), (35, 7482366), (42, 6235305), (45, 5819618), (63, 4156870), (70, 3741183), (90, 2909809), (105, 2494122), (126, 2078435), (210, 1247061), (315, 831374), (630, 415687)]