123572800

素因数分解:

$2^6\times 5^2\times {\mathrm{13}}^2\times {\mathrm{457}}^1$

素因数の和:505

約数の個数: 126

約数和(自身を含む): 329975718

約数和(自身を除く): 206402918

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 130, 160, 169, 200, 208, 260, 320, 325, 338, 400, 416, 457, 520, 650, 676, 800, 832, 845, 914, 1040, 1300, 1352, 1600, 1690, 1828, 2080, 2285, 2600, 2704, 3380, 3656, 4160, 4225, 4570, 5200, 5408, 5941, 6760, 7312, 8450, 9140, 10400, 10816, 11425, 11882, 13520, 14624, 16900, 18280, 20800, 22850, 23764, 27040, 29248, 29705, 33800, 36560, 45700, 47528, 54080, 59410, 67600, 73120, 77233, 91400, 95056, 118820, 135200, 146240, 148525, 154466, 182800, 190112, 237640, 270400, 297050, 308932, 365600, 380224, 386165, 475280, 594100, 617864, 731200, 772330, 950560, 1188200, 1235728, 1544660, 1901120, 1930825, 2376400, 2471456, 3089320, 3861650, 4752800, 4942912, 6178640, 7723300, 9505600, 12357280, 15446600, 24714560, 30893200, 61786400, 123572800]

約数ペア:

[(1, 123572800), (2, 61786400), (4, 30893200), (5, 24714560), (8, 15446600), (10, 12357280), (13, 9505600), (16, 7723300), (20, 6178640), (25, 4942912), (26, 4752800), (32, 3861650), (40, 3089320), (50, 2471456), (52, 2376400), (64, 1930825), (65, 1901120), (80, 1544660), (100, 1235728), (104, 1188200), (130, 950560), (160, 772330), (169, 731200), (200, 617864), (208, 594100), (260, 475280), (320, 386165), (325, 380224), (338, 365600), (400, 308932), (416, 297050), (457, 270400), (520, 237640), (650, 190112), (676, 182800), (800, 154466), (832, 148525), (845, 146240), (914, 135200), (1040, 118820), (1300, 95056), (1352, 91400), (1600, 77233), (1690, 73120), (1828, 67600), (2080, 59410), (2285, 54080), (2600, 47528), (2704, 45700), (3380, 36560), (3656, 33800), (4160, 29705), (4225, 29248), (4570, 27040), (5200, 23764), (5408, 22850), (5941, 20800), (6760, 18280), (7312, 16900), (8450, 14624), (9140, 13520), (10400, 11882), (10816, 11425)]