208021428

素因数分解:

$2^2\times 3^2\times {\mathrm{127}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 535062528

約数和(自身を除く): 327041100

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 127, 173, 254, 263, 346, 381, 508, 519, 526, 692, 762, 789, 1038, 1052, 1143, 1524, 1557, 1578, 2076, 2286, 2367, 3114, 3156, 4572, 4734, 6228, 9468, 21971, 33401, 43942, 45499, 65913, 66802, 87884, 90998, 100203, 131826, 133604, 136497, 181996, 197739, 200406, 263652, 272994, 300609, 395478, 400812, 409491, 545988, 601218, 790956, 818982, 1202436, 1637964, 5778373, 11556746, 17335119, 23113492, 34670238, 52005357, 69340476, 104010714, 208021428]

約数ペア:

[(1, 208021428), (2, 104010714), (3, 69340476), (4, 52005357), (6, 34670238), (9, 23113492), (12, 17335119), (18, 11556746), (36, 5778373), (127, 1637964), (173, 1202436), (254, 818982), (263, 790956), (346, 601218), (381, 545988), (508, 409491), (519, 400812), (526, 395478), (692, 300609), (762, 272994), (789, 263652), (1038, 200406), (1052, 197739), (1143, 181996), (1524, 136497), (1557, 133604), (1578, 131826), (2076, 100203), (2286, 90998), (2367, 87884), (3114, 66802), (3156, 65913), (4572, 45499), (4734, 43942), (6228, 33401), (9468, 21971)]