28686720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:312

約数の個数: 128

約数和(自身を含む): 93219840

約数和(自身を除く): 64533120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 80, 96, 120, 128, 134, 160, 192, 201, 223, 240, 268, 320, 335, 384, 402, 446, 480, 536, 640, 669, 670, 804, 892, 960, 1005, 1072, 1115, 1338, 1340, 1608, 1784, 1920, 2010, 2144, 2230, 2676, 2680, 3216, 3345, 3568, 4020, 4288, 4460, 5352, 5360, 6432, 6690, 7136, 8040, 8576, 8920, 10704, 10720, 12864, 13380, 14272, 14941, 16080, 17840, 21408, 21440, 25728, 26760, 28544, 29882, 32160, 35680, 42816, 42880, 44823, 53520, 59764, 64320, 71360, 74705, 85632, 89646, 107040, 119528, 128640, 142720, 149410, 179292, 214080, 224115, 239056, 298820, 358584, 428160, 448230, 478112, 597640, 717168, 896460, 956224, 1195280, 1434336, 1792920, 1912448, 2390560, 2868672, 3585840, 4781120, 5737344, 7171680, 9562240, 14343360, 28686720]

約数ペア:

[(1, 28686720), (2, 14343360), (3, 9562240), (4, 7171680), (5, 5737344), (6, 4781120), (8, 3585840), (10, 2868672), (12, 2390560), (15, 1912448), (16, 1792920), (20, 1434336), (24, 1195280), (30, 956224), (32, 896460), (40, 717168), (48, 597640), (60, 478112), (64, 448230), (67, 428160), (80, 358584), (96, 298820), (120, 239056), (128, 224115), (134, 214080), (160, 179292), (192, 149410), (201, 142720), (223, 128640), (240, 119528), (268, 107040), (320, 89646), (335, 85632), (384, 74705), (402, 71360), (446, 64320), (480, 59764), (536, 53520), (640, 44823), (669, 42880), (670, 42816), (804, 35680), (892, 32160), (960, 29882), (1005, 28544), (1072, 26760), (1115, 25728), (1338, 21440), (1340, 21408), (1608, 17840), (1784, 16080), (1920, 14941), (2010, 14272), (2144, 13380), (2230, 12864), (2676, 10720), (2680, 10704), (3216, 8920), (3345, 8576), (3568, 8040), (4020, 7136), (4288, 6690), (4460, 6432), (5352, 5360)]