21468120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 47651880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 31, 40, 58, 60, 62, 87, 93, 116, 120, 124, 145, 155, 174, 186, 199, 232, 248, 290, 310, 348, 372, 398, 435, 465, 580, 597, 620, 696, 744, 796, 870, 899, 930, 995, 1160, 1194, 1240, 1592, 1740, 1798, 1860, 1990, 2388, 2697, 2985, 3480, 3596, 3720, 3980, 4495, 4776, 5394, 5771, 5970, 6169, 7192, 7960, 8990, 10788, 11542, 11940, 12338, 13485, 17313, 17980, 18507, 21576, 23084, 23880, 24676, 26970, 28855, 30845, 34626, 35960, 37014, 46168, 49352, 53940, 57710, 61690, 69252, 74028, 86565, 92535, 107880, 115420, 123380, 138504, 148056, 173130, 178901, 185070, 230840, 246760, 346260, 357802, 370140, 536703, 692520, 715604, 740280, 894505, 1073406, 1431208, 1789010, 2146812, 2683515, 3578020, 4293624, 5367030, 7156040, 10734060, 21468120]

約数ペア:

[(1, 21468120), (2, 10734060), (3, 7156040), (4, 5367030), (5, 4293624), (6, 3578020), (8, 2683515), (10, 2146812), (12, 1789010), (15, 1431208), (20, 1073406), (24, 894505), (29, 740280), (30, 715604), (31, 692520), (40, 536703), (58, 370140), (60, 357802), (62, 346260), (87, 246760), (93, 230840), (116, 185070), (120, 178901), (124, 173130), (145, 148056), (155, 138504), (174, 123380), (186, 115420), (199, 107880), (232, 92535), (248, 86565), (290, 74028), (310, 69252), (348, 61690), (372, 57710), (398, 53940), (435, 49352), (465, 46168), (580, 37014), (597, 35960), (620, 34626), (696, 30845), (744, 28855), (796, 26970), (870, 24676), (899, 23880), (930, 23084), (995, 21576), (1160, 18507), (1194, 17980), (1240, 17313), (1592, 13485), (1740, 12338), (1798, 11940), (1860, 11542), (1990, 10788), (2388, 8990), (2697, 7960), (2985, 7192), (3480, 6169), (3596, 5970), (3720, 5771), (3980, 5394), (4495, 4776)]