53750000

素因数分解:

$2^4\times 5^7\times {\mathrm{43}}^1$

素因数の和:86

約数の個数: 80

約数和(自身を含む): 133202784

約数和(自身を除く): 79452784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 125, 172, 200, 215, 250, 344, 400, 430, 500, 625, 688, 860, 1000, 1075, 1250, 1720, 2000, 2150, 2500, 3125, 3440, 4300, 5000, 5375, 6250, 8600, 10000, 10750, 12500, 15625, 17200, 21500, 25000, 26875, 31250, 43000, 50000, 53750, 62500, 78125, 86000, 107500, 125000, 134375, 156250, 215000, 250000, 268750, 312500, 430000, 537500, 625000, 671875, 1075000, 1250000, 1343750, 2150000, 2687500, 3359375, 5375000, 6718750, 10750000, 13437500, 26875000, 53750000]

約数ペア:

[(1, 53750000), (2, 26875000), (4, 13437500), (5, 10750000), (8, 6718750), (10, 5375000), (16, 3359375), (20, 2687500), (25, 2150000), (40, 1343750), (43, 1250000), (50, 1075000), (80, 671875), (86, 625000), (100, 537500), (125, 430000), (172, 312500), (200, 268750), (215, 250000), (250, 215000), (344, 156250), (400, 134375), (430, 125000), (500, 107500), (625, 86000), (688, 78125), (860, 62500), (1000, 53750), (1075, 50000), (1250, 43000), (1720, 31250), (2000, 26875), (2150, 25000), (2500, 21500), (3125, 17200), (3440, 15625), (4300, 12500), (5000, 10750), (5375, 10000), (6250, 8600)]