647280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 2321280

約数和(自身を除く): 1674000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 31, 36, 40, 45, 48, 58, 60, 62, 72, 80, 87, 90, 93, 116, 120, 124, 144, 145, 155, 174, 180, 186, 232, 240, 248, 261, 279, 290, 310, 348, 360, 372, 435, 464, 465, 496, 522, 558, 580, 620, 696, 720, 744, 870, 899, 930, 1044, 1116, 1160, 1240, 1305, 1392, 1395, 1488, 1740, 1798, 1860, 2088, 2232, 2320, 2480, 2610, 2697, 2790, 3480, 3596, 3720, 4176, 4464, 4495, 5220, 5394, 5580, 6960, 7192, 7440, 8091, 8990, 10440, 10788, 11160, 13485, 14384, 16182, 17980, 20880, 21576, 22320, 26970, 32364, 35960, 40455, 43152, 53940, 64728, 71920, 80910, 107880, 129456, 161820, 215760, 323640, 647280]

約数ペア:

[(1, 647280), (2, 323640), (3, 215760), (4, 161820), (5, 129456), (6, 107880), (8, 80910), (9, 71920), (10, 64728), (12, 53940), (15, 43152), (16, 40455), (18, 35960), (20, 32364), (24, 26970), (29, 22320), (30, 21576), (31, 20880), (36, 17980), (40, 16182), (45, 14384), (48, 13485), (58, 11160), (60, 10788), (62, 10440), (72, 8990), (80, 8091), (87, 7440), (90, 7192), (93, 6960), (116, 5580), (120, 5394), (124, 5220), (144, 4495), (145, 4464), (155, 4176), (174, 3720), (180, 3596), (186, 3480), (232, 2790), (240, 2697), (248, 2610), (261, 2480), (279, 2320), (290, 2232), (310, 2088), (348, 1860), (360, 1798), (372, 1740), (435, 1488), (464, 1395), (465, 1392), (496, 1305), (522, 1240), (558, 1160), (580, 1116), (620, 1044), (696, 930), (720, 899), (744, 870)]