18553640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 51701760

約数和(自身を除く): 33148120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 43, 46, 56, 67, 70, 86, 92, 115, 134, 140, 161, 172, 184, 215, 230, 268, 280, 301, 322, 335, 344, 430, 460, 469, 536, 602, 644, 670, 805, 860, 920, 938, 989, 1204, 1288, 1340, 1505, 1541, 1610, 1720, 1876, 1978, 2345, 2408, 2680, 2881, 3010, 3082, 3220, 3752, 3956, 4690, 4945, 5762, 6020, 6164, 6440, 6923, 7705, 7912, 9380, 9890, 10787, 11524, 12040, 12328, 13846, 14405, 15410, 18760, 19780, 20167, 21574, 23048, 27692, 28810, 30820, 34615, 39560, 40334, 43148, 53935, 55384, 57620, 61640, 66263, 69230, 80668, 86296, 100835, 107870, 115240, 132526, 138460, 161336, 201670, 215740, 265052, 276920, 331315, 403340, 431480, 463841, 530104, 662630, 806680, 927682, 1325260, 1855364, 2319205, 2650520, 3710728, 4638410, 9276820, 18553640]

約数ペア:

[(1, 18553640), (2, 9276820), (4, 4638410), (5, 3710728), (7, 2650520), (8, 2319205), (10, 1855364), (14, 1325260), (20, 927682), (23, 806680), (28, 662630), (35, 530104), (40, 463841), (43, 431480), (46, 403340), (56, 331315), (67, 276920), (70, 265052), (86, 215740), (92, 201670), (115, 161336), (134, 138460), (140, 132526), (161, 115240), (172, 107870), (184, 100835), (215, 86296), (230, 80668), (268, 69230), (280, 66263), (301, 61640), (322, 57620), (335, 55384), (344, 53935), (430, 43148), (460, 40334), (469, 39560), (536, 34615), (602, 30820), (644, 28810), (670, 27692), (805, 23048), (860, 21574), (920, 20167), (938, 19780), (989, 18760), (1204, 15410), (1288, 14405), (1340, 13846), (1505, 12328), (1541, 12040), (1610, 11524), (1720, 10787), (1876, 9890), (1978, 9380), (2345, 7912), (2408, 7705), (2680, 6923), (2881, 6440), (3010, 6164), (3082, 6020), (3220, 5762), (3752, 4945), (3956, 4690)]