128736800

素因数分解:

$2^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:259

約数の個数: 144

約数和(自身を含む): 337478400

約数和(自身を除く): 208741600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 31, 32, 40, 50, 58, 62, 80, 100, 116, 124, 145, 155, 160, 179, 200, 232, 248, 290, 310, 358, 400, 464, 496, 580, 620, 716, 725, 775, 800, 895, 899, 928, 992, 1160, 1240, 1432, 1450, 1550, 1790, 1798, 2320, 2480, 2864, 2900, 3100, 3580, 3596, 4475, 4495, 4640, 4960, 5191, 5549, 5728, 5800, 6200, 7160, 7192, 8950, 8990, 10382, 11098, 11600, 12400, 14320, 14384, 17900, 17980, 20764, 22196, 22475, 23200, 24800, 25955, 27745, 28640, 28768, 35800, 35960, 41528, 44392, 44950, 51910, 55490, 71600, 71920, 83056, 88784, 89900, 103820, 110980, 129775, 138725, 143200, 143840, 160921, 166112, 177568, 179800, 207640, 221960, 259550, 277450, 321842, 359600, 415280, 443920, 519100, 554900, 643684, 719200, 804605, 830560, 887840, 1038200, 1109800, 1287368, 1609210, 2076400, 2219600, 2574736, 3218420, 4023025, 4152800, 4439200, 5149472, 6436840, 8046050, 12873680, 16092100, 25747360, 32184200, 64368400, 128736800]

約数ペア:

[(1, 128736800), (2, 64368400), (4, 32184200), (5, 25747360), (8, 16092100), (10, 12873680), (16, 8046050), (20, 6436840), (25, 5149472), (29, 4439200), (31, 4152800), (32, 4023025), (40, 3218420), (50, 2574736), (58, 2219600), (62, 2076400), (80, 1609210), (100, 1287368), (116, 1109800), (124, 1038200), (145, 887840), (155, 830560), (160, 804605), (179, 719200), (200, 643684), (232, 554900), (248, 519100), (290, 443920), (310, 415280), (358, 359600), (400, 321842), (464, 277450), (496, 259550), (580, 221960), (620, 207640), (716, 179800), (725, 177568), (775, 166112), (800, 160921), (895, 143840), (899, 143200), (928, 138725), (992, 129775), (1160, 110980), (1240, 103820), (1432, 89900), (1450, 88784), (1550, 83056), (1790, 71920), (1798, 71600), (2320, 55490), (2480, 51910), (2864, 44950), (2900, 44392), (3100, 41528), (3580, 35960), (3596, 35800), (4475, 28768), (4495, 28640), (4640, 27745), (4960, 25955), (5191, 24800), (5549, 23200), (5728, 22475), (5800, 22196), (6200, 20764), (7160, 17980), (7192, 17900), (8950, 14384), (8990, 14320), (10382, 12400), (11098, 11600)]