28764800

素因数分解:

$2^7\times 5^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 72567900

約数和(自身を除く): 43803100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 89, 100, 101, 128, 160, 178, 200, 202, 320, 356, 400, 404, 445, 505, 640, 712, 800, 808, 890, 1010, 1424, 1600, 1616, 1780, 2020, 2225, 2525, 2848, 3200, 3232, 3560, 4040, 4450, 5050, 5696, 6464, 7120, 8080, 8900, 8989, 10100, 11392, 12928, 14240, 16160, 17800, 17978, 20200, 28480, 32320, 35600, 35956, 40400, 44945, 56960, 64640, 71200, 71912, 80800, 89890, 142400, 143824, 161600, 179780, 224725, 284800, 287648, 323200, 359560, 449450, 575296, 719120, 898900, 1150592, 1438240, 1797800, 2876480, 3595600, 5752960, 7191200, 14382400, 28764800]

約数ペア:

[(1, 28764800), (2, 14382400), (4, 7191200), (5, 5752960), (8, 3595600), (10, 2876480), (16, 1797800), (20, 1438240), (25, 1150592), (32, 898900), (40, 719120), (50, 575296), (64, 449450), (80, 359560), (89, 323200), (100, 287648), (101, 284800), (128, 224725), (160, 179780), (178, 161600), (200, 143824), (202, 142400), (320, 89890), (356, 80800), (400, 71912), (404, 71200), (445, 64640), (505, 56960), (640, 44945), (712, 40400), (800, 35956), (808, 35600), (890, 32320), (1010, 28480), (1424, 20200), (1600, 17978), (1616, 17800), (1780, 16160), (2020, 14240), (2225, 12928), (2525, 11392), (2848, 10100), (3200, 8989), (3232, 8900), (3560, 8080), (4040, 7120), (4450, 6464), (5050, 5696)]