17891480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 43273440

約数和(自身を除く): 25381960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 83, 85, 136, 166, 170, 317, 332, 340, 415, 634, 664, 680, 830, 1268, 1411, 1585, 1660, 2536, 2822, 3170, 3320, 5389, 5644, 6340, 7055, 10778, 11288, 12680, 14110, 21556, 26311, 26945, 28220, 43112, 52622, 53890, 56440, 105244, 107780, 131555, 210488, 215560, 263110, 447287, 526220, 894574, 1052440, 1789148, 2236435, 3578296, 4472870, 8945740, 17891480]

約数ペア:

[(1, 17891480), (2, 8945740), (4, 4472870), (5, 3578296), (8, 2236435), (10, 1789148), (17, 1052440), (20, 894574), (34, 526220), (40, 447287), (68, 263110), (83, 215560), (85, 210488), (136, 131555), (166, 107780), (170, 105244), (317, 56440), (332, 53890), (340, 52622), (415, 43112), (634, 28220), (664, 26945), (680, 26311), (830, 21556), (1268, 14110), (1411, 12680), (1585, 11288), (1660, 10778), (2536, 7055), (2822, 6340), (3170, 5644), (3320, 5389)]