28756480

素因数分解:

$2^9\times 5^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 41953280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 239, 256, 320, 376, 470, 478, 512, 640, 752, 940, 956, 1195, 1280, 1504, 1880, 1912, 2390, 2560, 3008, 3760, 3824, 4780, 6016, 7520, 7648, 9560, 11233, 12032, 15040, 15296, 19120, 22466, 24064, 30080, 30592, 38240, 44932, 56165, 60160, 61184, 76480, 89864, 112330, 120320, 122368, 152960, 179728, 224660, 305920, 359456, 449320, 611840, 718912, 898640, 1437824, 1797280, 2875648, 3594560, 5751296, 7189120, 14378240, 28756480]

約数ペア:

[(1, 28756480), (2, 14378240), (4, 7189120), (5, 5751296), (8, 3594560), (10, 2875648), (16, 1797280), (20, 1437824), (32, 898640), (40, 718912), (47, 611840), (64, 449320), (80, 359456), (94, 305920), (128, 224660), (160, 179728), (188, 152960), (235, 122368), (239, 120320), (256, 112330), (320, 89864), (376, 76480), (470, 61184), (478, 60160), (512, 56165), (640, 44932), (752, 38240), (940, 30592), (956, 30080), (1195, 24064), (1280, 22466), (1504, 19120), (1880, 15296), (1912, 15040), (2390, 12032), (2560, 11233), (3008, 9560), (3760, 7648), (3824, 7520), (4780, 6016)]