317500000

素因数分解:

$2^5\times 5^7\times {\mathrm{127}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 787497984

約数和(自身を除く): 469997984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 127, 160, 200, 250, 254, 400, 500, 508, 625, 635, 800, 1000, 1016, 1250, 1270, 2000, 2032, 2500, 2540, 3125, 3175, 4000, 4064, 5000, 5080, 6250, 6350, 10000, 10160, 12500, 12700, 15625, 15875, 20000, 20320, 25000, 25400, 31250, 31750, 50000, 50800, 62500, 63500, 78125, 79375, 100000, 101600, 125000, 127000, 156250, 158750, 250000, 254000, 312500, 317500, 396875, 500000, 508000, 625000, 635000, 793750, 1250000, 1270000, 1587500, 1984375, 2500000, 2540000, 3175000, 3968750, 6350000, 7937500, 9921875, 12700000, 15875000, 19843750, 31750000, 39687500, 63500000, 79375000, 158750000, 317500000]

約数ペア:

[(1, 317500000), (2, 158750000), (4, 79375000), (5, 63500000), (8, 39687500), (10, 31750000), (16, 19843750), (20, 15875000), (25, 12700000), (32, 9921875), (40, 7937500), (50, 6350000), (80, 3968750), (100, 3175000), (125, 2540000), (127, 2500000), (160, 1984375), (200, 1587500), (250, 1270000), (254, 1250000), (400, 793750), (500, 635000), (508, 625000), (625, 508000), (635, 500000), (800, 396875), (1000, 317500), (1016, 312500), (1250, 254000), (1270, 250000), (2000, 158750), (2032, 156250), (2500, 127000), (2540, 125000), (3125, 101600), (3175, 100000), (4000, 79375), (4064, 78125), (5000, 63500), (5080, 62500), (6250, 50800), (6350, 50000), (10000, 31750), (10160, 31250), (12500, 25400), (12700, 25000), (15625, 20320), (15875, 20000)]