20764000

素因数分解:

$2^5\times 5^3\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 32307200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 125, 145, 160, 179, 200, 232, 250, 290, 358, 400, 464, 500, 580, 716, 725, 800, 895, 928, 1000, 1160, 1432, 1450, 1790, 2000, 2320, 2864, 2900, 3580, 3625, 4000, 4475, 4640, 5191, 5728, 5800, 7160, 7250, 8950, 10382, 11600, 14320, 14500, 17900, 20764, 22375, 23200, 25955, 28640, 29000, 35800, 41528, 44750, 51910, 58000, 71600, 83056, 89500, 103820, 116000, 129775, 143200, 166112, 179000, 207640, 259550, 358000, 415280, 519100, 648875, 716000, 830560, 1038200, 1297750, 2076400, 2595500, 4152800, 5191000, 10382000, 20764000]

約数ペア:

[(1, 20764000), (2, 10382000), (4, 5191000), (5, 4152800), (8, 2595500), (10, 2076400), (16, 1297750), (20, 1038200), (25, 830560), (29, 716000), (32, 648875), (40, 519100), (50, 415280), (58, 358000), (80, 259550), (100, 207640), (116, 179000), (125, 166112), (145, 143200), (160, 129775), (179, 116000), (200, 103820), (232, 89500), (250, 83056), (290, 71600), (358, 58000), (400, 51910), (464, 44750), (500, 41528), (580, 35800), (716, 29000), (725, 28640), (800, 25955), (895, 23200), (928, 22375), (1000, 20764), (1160, 17900), (1432, 14500), (1450, 14320), (1790, 11600), (2000, 10382), (2320, 8950), (2864, 7250), (2900, 7160), (3580, 5800), (3625, 5728), (4000, 5191), (4475, 4640)]