21899280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7019}}^1$

素因数の和:7048

約数の個数: 80

約数和(自身を含む): 73120320

約数和(自身を除く): 51221040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 7019, 14038, 21057, 28076, 35095, 42114, 56152, 70190, 84228, 91247, 105285, 112304, 140380, 168456, 182494, 210570, 273741, 280760, 336912, 364988, 421140, 456235, 547482, 561520, 729976, 842280, 912470, 1094964, 1368705, 1459952, 1684560, 1824940, 2189928, 2737410, 3649880, 4379856, 5474820, 7299760, 10949640, 21899280]

約数ペア:

[(1, 21899280), (2, 10949640), (3, 7299760), (4, 5474820), (5, 4379856), (6, 3649880), (8, 2737410), (10, 2189928), (12, 1824940), (13, 1684560), (15, 1459952), (16, 1368705), (20, 1094964), (24, 912470), (26, 842280), (30, 729976), (39, 561520), (40, 547482), (48, 456235), (52, 421140), (60, 364988), (65, 336912), (78, 280760), (80, 273741), (104, 210570), (120, 182494), (130, 168456), (156, 140380), (195, 112304), (208, 105285), (240, 91247), (260, 84228), (312, 70190), (390, 56152), (520, 42114), (624, 35095), (780, 28076), (1040, 21057), (1560, 14038), (3120, 7019)]