28761280

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{311}}^1$

素因数の和:362

約数の個数: 84

約数和(自身を含む): 72987408

約数和(自身を除く): 44226128

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 289, 311, 320, 340, 544, 578, 622, 680, 1088, 1156, 1244, 1360, 1445, 1555, 2312, 2488, 2720, 2890, 3110, 4624, 4976, 5287, 5440, 5780, 6220, 9248, 9952, 10574, 11560, 12440, 18496, 19904, 21148, 23120, 24880, 26435, 42296, 46240, 49760, 52870, 84592, 89879, 92480, 99520, 105740, 169184, 179758, 211480, 338368, 359516, 422960, 449395, 719032, 845920, 898790, 1438064, 1691840, 1797580, 2876128, 3595160, 5752256, 7190320, 14380640, 28761280]

約数ペア:

[(1, 28761280), (2, 14380640), (4, 7190320), (5, 5752256), (8, 3595160), (10, 2876128), (16, 1797580), (17, 1691840), (20, 1438064), (32, 898790), (34, 845920), (40, 719032), (64, 449395), (68, 422960), (80, 359516), (85, 338368), (136, 211480), (160, 179758), (170, 169184), (272, 105740), (289, 99520), (311, 92480), (320, 89879), (340, 84592), (544, 52870), (578, 49760), (622, 46240), (680, 42296), (1088, 26435), (1156, 24880), (1244, 23120), (1360, 21148), (1445, 19904), (1555, 18496), (2312, 12440), (2488, 11560), (2720, 10574), (2890, 9952), (3110, 9248), (4624, 6220), (4976, 5780), (5287, 5440)]