68381880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:789

約数の個数: 128

約数和(自身を含む): 236666880

約数和(自身を除く): 168285000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 127, 140, 168, 210, 254, 280, 381, 420, 508, 635, 641, 762, 840, 889, 1016, 1270, 1282, 1524, 1778, 1905, 1923, 2540, 2564, 2667, 3048, 3205, 3556, 3810, 3846, 4445, 4487, 5080, 5128, 5334, 6410, 7112, 7620, 7692, 8890, 8974, 9615, 10668, 12820, 13335, 13461, 15240, 15384, 17780, 17948, 19230, 21336, 22435, 25640, 26670, 26922, 35560, 35896, 38460, 44870, 53340, 53844, 67305, 76920, 81407, 89740, 106680, 107688, 134610, 162814, 179480, 244221, 269220, 325628, 407035, 488442, 538440, 569849, 651256, 814070, 976884, 1139698, 1221105, 1628140, 1709547, 1953768, 2279396, 2442210, 2849245, 3256280, 3419094, 4558792, 4884420, 5698490, 6838188, 8547735, 9768840, 11396980, 13676376, 17095470, 22793960, 34190940, 68381880]

約数ペア:

[(1, 68381880), (2, 34190940), (3, 22793960), (4, 17095470), (5, 13676376), (6, 11396980), (7, 9768840), (8, 8547735), (10, 6838188), (12, 5698490), (14, 4884420), (15, 4558792), (20, 3419094), (21, 3256280), (24, 2849245), (28, 2442210), (30, 2279396), (35, 1953768), (40, 1709547), (42, 1628140), (56, 1221105), (60, 1139698), (70, 976884), (84, 814070), (105, 651256), (120, 569849), (127, 538440), (140, 488442), (168, 407035), (210, 325628), (254, 269220), (280, 244221), (381, 179480), (420, 162814), (508, 134610), (635, 107688), (641, 106680), (762, 89740), (840, 81407), (889, 76920), (1016, 67305), (1270, 53844), (1282, 53340), (1524, 44870), (1778, 38460), (1905, 35896), (1923, 35560), (2540, 26922), (2564, 26670), (2667, 25640), (3048, 22435), (3205, 21336), (3556, 19230), (3810, 17948), (3846, 17780), (4445, 15384), (4487, 15240), (5080, 13461), (5128, 13335), (5334, 12820), (6410, 10668), (7112, 9615), (7620, 8974), (7692, 8890)]