71720000

素因数分解:

$2^6\times 5^4\times {\mathrm{11}}^1\times {\mathrm{163}}^1$

素因数の和:206

約数の個数: 140

約数和(自身を含む): 195200016

約数和(自身を除く): 123480016

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 125, 160, 163, 176, 200, 220, 250, 275, 320, 326, 352, 400, 440, 500, 550, 625, 652, 704, 800, 815, 880, 1000, 1100, 1250, 1304, 1375, 1600, 1630, 1760, 1793, 2000, 2200, 2500, 2608, 2750, 3260, 3520, 3586, 4000, 4075, 4400, 5000, 5216, 5500, 6520, 6875, 7172, 8000, 8150, 8800, 8965, 10000, 10432, 11000, 13040, 13750, 14344, 16300, 17600, 17930, 20000, 20375, 22000, 26080, 27500, 28688, 32600, 35860, 40000, 40750, 44000, 44825, 52160, 55000, 57376, 65200, 71720, 81500, 88000, 89650, 101875, 110000, 114752, 130400, 143440, 163000, 179300, 203750, 220000, 224125, 260800, 286880, 326000, 358600, 407500, 440000, 448250, 573760, 652000, 717200, 815000, 896500, 1120625, 1304000, 1434400, 1630000, 1793000, 2241250, 2868800, 3260000, 3586000, 4482500, 6520000, 7172000, 8965000, 14344000, 17930000, 35860000, 71720000]

約数ペア:

[(1, 71720000), (2, 35860000), (4, 17930000), (5, 14344000), (8, 8965000), (10, 7172000), (11, 6520000), (16, 4482500), (20, 3586000), (22, 3260000), (25, 2868800), (32, 2241250), (40, 1793000), (44, 1630000), (50, 1434400), (55, 1304000), (64, 1120625), (80, 896500), (88, 815000), (100, 717200), (110, 652000), (125, 573760), (160, 448250), (163, 440000), (176, 407500), (200, 358600), (220, 326000), (250, 286880), (275, 260800), (320, 224125), (326, 220000), (352, 203750), (400, 179300), (440, 163000), (500, 143440), (550, 130400), (625, 114752), (652, 110000), (704, 101875), (800, 89650), (815, 88000), (880, 81500), (1000, 71720), (1100, 65200), (1250, 57376), (1304, 55000), (1375, 52160), (1600, 44825), (1630, 44000), (1760, 40750), (1793, 40000), (2000, 35860), (2200, 32600), (2500, 28688), (2608, 27500), (2750, 26080), (3260, 22000), (3520, 20375), (3586, 20000), (4000, 17930), (4075, 17600), (4400, 16300), (5000, 14344), (5216, 13750), (5500, 13040), (6520, 11000), (6875, 10432), (7172, 10000), (8000, 8965), (8150, 8800)]