28754480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21143}}^1$

素因数の和:21173

約数の個数: 40

約数和(自身を含む): 70790112

約数和(自身を除く): 42035632

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21143, 42286, 84572, 105715, 169144, 211430, 338288, 359431, 422860, 718862, 845720, 1437724, 1691440, 1797155, 2875448, 3594310, 5750896, 7188620, 14377240, 28754480]

約数ペア:

[(1, 28754480), (2, 14377240), (4, 7188620), (5, 5750896), (8, 3594310), (10, 2875448), (16, 1797155), (17, 1691440), (20, 1437724), (34, 845720), (40, 718862), (68, 422860), (80, 359431), (85, 338288), (136, 211430), (170, 169144), (272, 105715), (340, 84572), (680, 42286), (1360, 21143)]