21986720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:382

約数の個数: 96

約数和(自身を含む): 60455808

約数和(自身を除く): 38469088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 67, 70, 80, 112, 134, 140, 160, 224, 268, 280, 293, 335, 469, 536, 560, 586, 670, 938, 1072, 1120, 1172, 1340, 1465, 1876, 2051, 2144, 2344, 2345, 2680, 2930, 3752, 4102, 4688, 4690, 5360, 5860, 7504, 8204, 9376, 9380, 10255, 10720, 11720, 15008, 16408, 18760, 19631, 20510, 23440, 32816, 37520, 39262, 41020, 46880, 65632, 75040, 78524, 82040, 98155, 137417, 157048, 164080, 196310, 274834, 314096, 328160, 392620, 549668, 628192, 687085, 785240, 1099336, 1374170, 1570480, 2198672, 2748340, 3140960, 4397344, 5496680, 10993360, 21986720]

約数ペア:

[(1, 21986720), (2, 10993360), (4, 5496680), (5, 4397344), (7, 3140960), (8, 2748340), (10, 2198672), (14, 1570480), (16, 1374170), (20, 1099336), (28, 785240), (32, 687085), (35, 628192), (40, 549668), (56, 392620), (67, 328160), (70, 314096), (80, 274834), (112, 196310), (134, 164080), (140, 157048), (160, 137417), (224, 98155), (268, 82040), (280, 78524), (293, 75040), (335, 65632), (469, 46880), (536, 41020), (560, 39262), (586, 37520), (670, 32816), (938, 23440), (1072, 20510), (1120, 19631), (1172, 18760), (1340, 16408), (1465, 15008), (1876, 11720), (2051, 10720), (2144, 10255), (2344, 9380), (2345, 9376), (2680, 8204), (2930, 7504), (3752, 5860), (4102, 5360), (4688, 4690)]