128260784

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1973}}^1$

素因数の和:2237

約数の個数: 40

約数和(自身を含む): 264358080

約数和(自身を除く): 136097296

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 239, 272, 478, 956, 1912, 1973, 3824, 3946, 4063, 7892, 8126, 15784, 16252, 31568, 32504, 33541, 65008, 67082, 134164, 268328, 471547, 536656, 943094, 1886188, 3772376, 7544752, 8016299, 16032598, 32065196, 64130392, 128260784]

約数ペア:

[(1, 128260784), (2, 64130392), (4, 32065196), (8, 16032598), (16, 8016299), (17, 7544752), (34, 3772376), (68, 1886188), (136, 943094), (239, 536656), (272, 471547), (478, 268328), (956, 134164), (1912, 67082), (1973, 65008), (3824, 33541), (3946, 32504), (4063, 31568), (7892, 16252), (8126, 15784)]