280155172

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 579156480

約数和(自身を除く): 299001308

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 79, 121, 158, 187, 242, 316, 374, 431, 484, 748, 862, 869, 1343, 1724, 1738, 2057, 2686, 3476, 4114, 4741, 5372, 7327, 8228, 9482, 9559, 14654, 14773, 18964, 19118, 29308, 29546, 34049, 38236, 52151, 59092, 68098, 80597, 104302, 136196, 161194, 162503, 208604, 322388, 325006, 374539, 578833, 650012, 749078, 886567, 1157666, 1498156, 1773134, 2315332, 3546268, 4119929, 6367163, 8239858, 12734326, 16479716, 25468652, 70038793, 140077586, 280155172]

約数ペア:

[(1, 280155172), (2, 140077586), (4, 70038793), (11, 25468652), (17, 16479716), (22, 12734326), (34, 8239858), (44, 6367163), (68, 4119929), (79, 3546268), (121, 2315332), (158, 1773134), (187, 1498156), (242, 1157666), (316, 886567), (374, 749078), (431, 650012), (484, 578833), (748, 374539), (862, 325006), (869, 322388), (1343, 208604), (1724, 162503), (1738, 161194), (2057, 136196), (2686, 104302), (3476, 80597), (4114, 68098), (4741, 59092), (5372, 52151), (7327, 38236), (8228, 34049), (9482, 29546), (9559, 29308), (14654, 19118), (14773, 18964)]