31510000

素因数分解:

$2^4\times 5^4\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:188

約数の個数: 100

約数和(自身を含む): 80186832

約数和(自身を除く): 48676832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 125, 137, 184, 200, 230, 250, 274, 368, 400, 460, 500, 548, 575, 625, 685, 920, 1000, 1096, 1150, 1250, 1370, 1840, 2000, 2192, 2300, 2500, 2740, 2875, 3151, 3425, 4600, 5000, 5480, 5750, 6302, 6850, 9200, 10000, 10960, 11500, 12604, 13700, 14375, 15755, 17125, 23000, 25208, 27400, 28750, 31510, 34250, 46000, 50416, 54800, 57500, 63020, 68500, 78775, 85625, 115000, 126040, 137000, 157550, 171250, 230000, 252080, 274000, 315100, 342500, 393875, 630200, 685000, 787750, 1260400, 1370000, 1575500, 1969375, 3151000, 3938750, 6302000, 7877500, 15755000, 31510000]

約数ペア:

[(1, 31510000), (2, 15755000), (4, 7877500), (5, 6302000), (8, 3938750), (10, 3151000), (16, 1969375), (20, 1575500), (23, 1370000), (25, 1260400), (40, 787750), (46, 685000), (50, 630200), (80, 393875), (92, 342500), (100, 315100), (115, 274000), (125, 252080), (137, 230000), (184, 171250), (200, 157550), (230, 137000), (250, 126040), (274, 115000), (368, 85625), (400, 78775), (460, 68500), (500, 63020), (548, 57500), (575, 54800), (625, 50416), (685, 46000), (920, 34250), (1000, 31510), (1096, 28750), (1150, 27400), (1250, 25208), (1370, 23000), (1840, 17125), (2000, 15755), (2192, 14375), (2300, 13700), (2500, 12604), (2740, 11500), (2875, 10960), (3151, 10000), (3425, 9200), (4600, 6850), (5000, 6302), (5480, 5750)]