280825000

素因数分解:

$2^3\times 5^5\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 674956800

約数和(自身を除く): 394131800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 125, 188, 200, 235, 239, 250, 376, 470, 478, 500, 625, 940, 956, 1000, 1175, 1195, 1250, 1880, 1912, 2350, 2390, 2500, 3125, 4700, 4780, 5000, 5875, 5975, 6250, 9400, 9560, 11233, 11750, 11950, 12500, 22466, 23500, 23900, 25000, 29375, 29875, 44932, 47000, 47800, 56165, 58750, 59750, 89864, 112330, 117500, 119500, 146875, 149375, 224660, 235000, 239000, 280825, 293750, 298750, 449320, 561650, 587500, 597500, 746875, 1123300, 1175000, 1195000, 1404125, 1493750, 2246600, 2808250, 2987500, 5616500, 5975000, 7020625, 11233000, 14041250, 28082500, 35103125, 56165000, 70206250, 140412500, 280825000]

約数ペア:

[(1, 280825000), (2, 140412500), (4, 70206250), (5, 56165000), (8, 35103125), (10, 28082500), (20, 14041250), (25, 11233000), (40, 7020625), (47, 5975000), (50, 5616500), (94, 2987500), (100, 2808250), (125, 2246600), (188, 1493750), (200, 1404125), (235, 1195000), (239, 1175000), (250, 1123300), (376, 746875), (470, 597500), (478, 587500), (500, 561650), (625, 449320), (940, 298750), (956, 293750), (1000, 280825), (1175, 239000), (1195, 235000), (1250, 224660), (1880, 149375), (1912, 146875), (2350, 119500), (2390, 117500), (2500, 112330), (3125, 89864), (4700, 59750), (4780, 58750), (5000, 56165), (5875, 47800), (5975, 47000), (6250, 44932), (9400, 29875), (9560, 29375), (11233, 25000), (11750, 23900), (11950, 23500), (12500, 22466)]