7421680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{457}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 20445120

約数和(自身を除く): 13023440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 457, 464, 560, 580, 812, 914, 1015, 1160, 1624, 1828, 2030, 2285, 2320, 3199, 3248, 3656, 4060, 4570, 6398, 7312, 8120, 9140, 12796, 13253, 15995, 16240, 18280, 25592, 26506, 31990, 36560, 51184, 53012, 63980, 66265, 92771, 106024, 127960, 132530, 185542, 212048, 255920, 265060, 371084, 463855, 530120, 742168, 927710, 1060240, 1484336, 1855420, 3710840, 7421680]

約数ペア:

[(1, 7421680), (2, 3710840), (4, 1855420), (5, 1484336), (7, 1060240), (8, 927710), (10, 742168), (14, 530120), (16, 463855), (20, 371084), (28, 265060), (29, 255920), (35, 212048), (40, 185542), (56, 132530), (58, 127960), (70, 106024), (80, 92771), (112, 66265), (116, 63980), (140, 53012), (145, 51184), (203, 36560), (232, 31990), (280, 26506), (290, 25592), (406, 18280), (457, 16240), (464, 15995), (560, 13253), (580, 12796), (812, 9140), (914, 8120), (1015, 7312), (1160, 6398), (1624, 4570), (1828, 4060), (2030, 3656), (2285, 3248), (2320, 3199)]