26875000

素因数分解:

$2^3\times 5^7\times {\mathrm{43}}^1$

素因数の和:84

約数の個数: 64

約数和(自身を含む): 64452960

約数和(自身を除く): 37577960

約数列:

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

約数ペア:

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