28819000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:230

約数の個数: 128

約数和(自身を含む): 80870400

約数和(自身を除く): 52051400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 92, 100, 115, 125, 140, 161, 175, 179, 184, 200, 230, 250, 280, 322, 350, 358, 460, 500, 575, 644, 700, 716, 805, 875, 895, 920, 1000, 1150, 1253, 1288, 1400, 1432, 1610, 1750, 1790, 2300, 2506, 2875, 3220, 3500, 3580, 4025, 4117, 4475, 4600, 5012, 5750, 6265, 6440, 7000, 7160, 8050, 8234, 8950, 10024, 11500, 12530, 16100, 16468, 17900, 20125, 20585, 22375, 23000, 25060, 28819, 31325, 32200, 32936, 35800, 40250, 41170, 44750, 50120, 57638, 62650, 80500, 82340, 89500, 102925, 115276, 125300, 144095, 156625, 161000, 164680, 179000, 205850, 230552, 250600, 288190, 313250, 411700, 514625, 576380, 626500, 720475, 823400, 1029250, 1152760, 1253000, 1440950, 2058500, 2881900, 3602375, 4117000, 5763800, 7204750, 14409500, 28819000]

約数ペア:

[(1, 28819000), (2, 14409500), (4, 7204750), (5, 5763800), (7, 4117000), (8, 3602375), (10, 2881900), (14, 2058500), (20, 1440950), (23, 1253000), (25, 1152760), (28, 1029250), (35, 823400), (40, 720475), (46, 626500), (50, 576380), (56, 514625), (70, 411700), (92, 313250), (100, 288190), (115, 250600), (125, 230552), (140, 205850), (161, 179000), (175, 164680), (179, 161000), (184, 156625), (200, 144095), (230, 125300), (250, 115276), (280, 102925), (322, 89500), (350, 82340), (358, 80500), (460, 62650), (500, 57638), (575, 50120), (644, 44750), (700, 41170), (716, 40250), (805, 35800), (875, 32936), (895, 32200), (920, 31325), (1000, 28819), (1150, 25060), (1253, 23000), (1288, 22375), (1400, 20585), (1432, 20125), (1610, 17900), (1750, 16468), (1790, 16100), (2300, 12530), (2506, 11500), (2875, 10024), (3220, 8950), (3500, 8234), (3580, 8050), (4025, 7160), (4117, 7000), (4475, 6440), (4600, 6265), (5012, 5750)]