20046720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:272

約数の個数: 128

約数和(自身を含む): 65435040

約数和(自身を除く): 45388320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 106, 120, 128, 159, 160, 192, 197, 212, 240, 265, 318, 320, 384, 394, 424, 480, 530, 591, 636, 640, 788, 795, 848, 960, 985, 1060, 1182, 1272, 1576, 1590, 1696, 1920, 1970, 2120, 2364, 2544, 2955, 3152, 3180, 3392, 3940, 4240, 4728, 5088, 5910, 6304, 6360, 6784, 7880, 8480, 9456, 10176, 10441, 11820, 12608, 12720, 15760, 16960, 18912, 20352, 20882, 23640, 25216, 25440, 31323, 31520, 33920, 37824, 41764, 47280, 50880, 52205, 62646, 63040, 75648, 83528, 94560, 101760, 104410, 125292, 126080, 156615, 167056, 189120, 208820, 250584, 313230, 334112, 378240, 417640, 501168, 626460, 668224, 835280, 1002336, 1252920, 1336448, 1670560, 2004672, 2505840, 3341120, 4009344, 5011680, 6682240, 10023360, 20046720]

約数ペア:

[(1, 20046720), (2, 10023360), (3, 6682240), (4, 5011680), (5, 4009344), (6, 3341120), (8, 2505840), (10, 2004672), (12, 1670560), (15, 1336448), (16, 1252920), (20, 1002336), (24, 835280), (30, 668224), (32, 626460), (40, 501168), (48, 417640), (53, 378240), (60, 334112), (64, 313230), (80, 250584), (96, 208820), (106, 189120), (120, 167056), (128, 156615), (159, 126080), (160, 125292), (192, 104410), (197, 101760), (212, 94560), (240, 83528), (265, 75648), (318, 63040), (320, 62646), (384, 52205), (394, 50880), (424, 47280), (480, 41764), (530, 37824), (591, 33920), (636, 31520), (640, 31323), (788, 25440), (795, 25216), (848, 23640), (960, 20882), (985, 20352), (1060, 18912), (1182, 16960), (1272, 15760), (1576, 12720), (1590, 12608), (1696, 11820), (1920, 10441), (1970, 10176), (2120, 9456), (2364, 8480), (2544, 7880), (2955, 6784), (3152, 6360), (3180, 6304), (3392, 5910), (3940, 5088), (4240, 4728)]