400586720

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:652

約数の個数: 96

約数和(自身を含む): 976183488

約数和(自身を除く): 575596768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 97, 106, 160, 194, 212, 265, 388, 424, 485, 487, 530, 776, 848, 970, 974, 1060, 1552, 1696, 1940, 1948, 2120, 2435, 3104, 3880, 3896, 4240, 4870, 5141, 7760, 7792, 8480, 9740, 10282, 15520, 15584, 19480, 20564, 25705, 25811, 38960, 41128, 47239, 51410, 51622, 77920, 82256, 94478, 102820, 103244, 129055, 164512, 188956, 205640, 206488, 236195, 258110, 377912, 411280, 412976, 472390, 516220, 755824, 822560, 825952, 944780, 1032440, 1511648, 1889560, 2064880, 2503667, 3779120, 4129760, 5007334, 7558240, 10014668, 12518335, 20029336, 25036670, 40058672, 50073340, 80117344, 100146680, 200293360, 400586720]

約数ペア:

[(1, 400586720), (2, 200293360), (4, 100146680), (5, 80117344), (8, 50073340), (10, 40058672), (16, 25036670), (20, 20029336), (32, 12518335), (40, 10014668), (53, 7558240), (80, 5007334), (97, 4129760), (106, 3779120), (160, 2503667), (194, 2064880), (212, 1889560), (265, 1511648), (388, 1032440), (424, 944780), (485, 825952), (487, 822560), (530, 755824), (776, 516220), (848, 472390), (970, 412976), (974, 411280), (1060, 377912), (1552, 258110), (1696, 236195), (1940, 206488), (1948, 205640), (2120, 188956), (2435, 164512), (3104, 129055), (3880, 103244), (3896, 102820), (4240, 94478), (4870, 82256), (5141, 77920), (7760, 51622), (7792, 51410), (8480, 47239), (9740, 41128), (10282, 38960), (15520, 25811), (15584, 25705), (19480, 20564)]