280031648

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1066

約数の個数: 72

約数和(自身を含む): 608869548

約数和(自身を除く): 328837900

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 104, 106, 169, 208, 212, 338, 416, 424, 676, 689, 848, 977, 1352, 1378, 1696, 1954, 2704, 2756, 3908, 5408, 5512, 7816, 8957, 11024, 12701, 15632, 17914, 22048, 25402, 31264, 35828, 50804, 51781, 71656, 101608, 103562, 143312, 165113, 203216, 207124, 286624, 330226, 406432, 414248, 660452, 673153, 828496, 1320904, 1346306, 1656992, 2641808, 2692612, 5283616, 5385224, 8750989, 10770448, 17501978, 21540896, 35003956, 70007912, 140015824, 280031648]

約数ペア:

[(1, 280031648), (2, 140015824), (4, 70007912), (8, 35003956), (13, 21540896), (16, 17501978), (26, 10770448), (32, 8750989), (52, 5385224), (53, 5283616), (104, 2692612), (106, 2641808), (169, 1656992), (208, 1346306), (212, 1320904), (338, 828496), (416, 673153), (424, 660452), (676, 414248), (689, 406432), (848, 330226), (977, 286624), (1352, 207124), (1378, 203216), (1696, 165113), (1954, 143312), (2704, 103562), (2756, 101608), (3908, 71656), (5408, 51781), (5512, 50804), (7816, 35828), (8957, 31264), (11024, 25402), (12701, 22048), (15632, 17914)]