640166688

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18679}}^1$

素因数の和:18719

約数の個数: 144

約数和(自身を含む): 2203044480

約数和(自身を除く): 1562877792

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 32, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 96, 102, 112, 119, 126, 136, 144, 153, 168, 204, 224, 238, 252, 272, 288, 306, 336, 357, 408, 476, 504, 544, 612, 672, 714, 816, 952, 1008, 1071, 1224, 1428, 1632, 1904, 2016, 2142, 2448, 2856, 3808, 4284, 4896, 5712, 8568, 11424, 17136, 18679, 34272, 37358, 56037, 74716, 112074, 130753, 149432, 168111, 224148, 261506, 298864, 317543, 336222, 392259, 448296, 523012, 597728, 635086, 672444, 784518, 896592, 952629, 1046024, 1176777, 1270172, 1344888, 1569036, 1793184, 1905258, 2092048, 2222801, 2353554, 2540344, 2689776, 2857887, 3138072, 3810516, 4184096, 4445602, 4707108, 5080688, 5379552, 5715774, 6276144, 6668403, 7621032, 8891204, 9414216, 10161376, 11431548, 12552288, 13336806, 15242064, 17782408, 18828432, 20005209, 22863096, 26673612, 30484128, 35564816, 37656864, 40010418, 45726192, 53347224, 71129632, 80020836, 91452384, 106694448, 160041672, 213388896, 320083344, 640166688]

約数ペア:

[(1, 640166688), (2, 320083344), (3, 213388896), (4, 160041672), (6, 106694448), (7, 91452384), (8, 80020836), (9, 71129632), (12, 53347224), (14, 45726192), (16, 40010418), (17, 37656864), (18, 35564816), (21, 30484128), (24, 26673612), (28, 22863096), (32, 20005209), (34, 18828432), (36, 17782408), (42, 15242064), (48, 13336806), (51, 12552288), (56, 11431548), (63, 10161376), (68, 9414216), (72, 8891204), (84, 7621032), (96, 6668403), (102, 6276144), (112, 5715774), (119, 5379552), (126, 5080688), (136, 4707108), (144, 4445602), (153, 4184096), (168, 3810516), (204, 3138072), (224, 2857887), (238, 2689776), (252, 2540344), (272, 2353554), (288, 2222801), (306, 2092048), (336, 1905258), (357, 1793184), (408, 1569036), (476, 1344888), (504, 1270172), (544, 1176777), (612, 1046024), (672, 952629), (714, 896592), (816, 784518), (952, 672444), (1008, 635086), (1071, 597728), (1224, 523012), (1428, 448296), (1632, 392259), (1904, 336222), (2016, 317543), (2142, 298864), (2448, 261506), (2856, 224148), (3808, 168111), (4284, 149432), (4896, 130753), (5712, 112074), (8568, 74716), (11424, 56037), (17136, 37358), (18679, 34272)]