21802560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1747}}^1$

素因数の和:1780

約数の個数: 112

約数和(自身を含む): 74590656

約数和(自身を除く): 52788096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 1747, 2080, 2496, 3120, 3494, 4160, 5241, 6240, 6988, 8735, 10482, 12480, 13976, 17470, 20964, 22711, 26205, 27952, 34940, 41928, 45422, 52410, 55904, 68133, 69880, 83856, 90844, 104820, 111808, 113555, 136266, 139760, 167712, 181688, 209640, 227110, 272532, 279520, 335424, 340665, 363376, 419280, 454220, 545064, 559040, 681330, 726752, 838560, 908440, 1090128, 1362660, 1453504, 1677120, 1816880, 2180256, 2725320, 3633760, 4360512, 5450640, 7267520, 10901280, 21802560]

約数ペア:

[(1, 21802560), (2, 10901280), (3, 7267520), (4, 5450640), (5, 4360512), (6, 3633760), (8, 2725320), (10, 2180256), (12, 1816880), (13, 1677120), (15, 1453504), (16, 1362660), (20, 1090128), (24, 908440), (26, 838560), (30, 726752), (32, 681330), (39, 559040), (40, 545064), (48, 454220), (52, 419280), (60, 363376), (64, 340665), (65, 335424), (78, 279520), (80, 272532), (96, 227110), (104, 209640), (120, 181688), (130, 167712), (156, 139760), (160, 136266), (192, 113555), (195, 111808), (208, 104820), (240, 90844), (260, 83856), (312, 69880), (320, 68133), (390, 55904), (416, 52410), (480, 45422), (520, 41928), (624, 34940), (780, 27952), (832, 26205), (960, 22711), (1040, 20964), (1248, 17470), (1560, 13976), (1747, 12480), (2080, 10482), (2496, 8735), (3120, 6988), (3494, 6240), (4160, 5241)]