28003716

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1129}}^1$

素因数の和:1205

約数の個数: 72

約数和(自身を含む): 77739480

約数和(自身を除く): 49735764

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 78, 106, 117, 156, 159, 212, 234, 318, 468, 477, 636, 689, 954, 1129, 1378, 1908, 2067, 2258, 2756, 3387, 4134, 4516, 6201, 6774, 8268, 10161, 12402, 13548, 14677, 20322, 24804, 29354, 40644, 44031, 58708, 59837, 88062, 119674, 132093, 176124, 179511, 239348, 264186, 359022, 528372, 538533, 718044, 777881, 1077066, 1555762, 2154132, 2333643, 3111524, 4667286, 7000929, 9334572, 14001858, 28003716]

約数ペア:

[(1, 28003716), (2, 14001858), (3, 9334572), (4, 7000929), (6, 4667286), (9, 3111524), (12, 2333643), (13, 2154132), (18, 1555762), (26, 1077066), (36, 777881), (39, 718044), (52, 538533), (53, 528372), (78, 359022), (106, 264186), (117, 239348), (156, 179511), (159, 176124), (212, 132093), (234, 119674), (318, 88062), (468, 59837), (477, 58708), (636, 44031), (689, 40644), (954, 29354), (1129, 24804), (1378, 20322), (1908, 14677), (2067, 13548), (2258, 12402), (2756, 10161), (3387, 8268), (4134, 6774), (4516, 6201)]