8050000

素因数分解:

$2^4\times 5^5\times 7^1\times {\mathrm{23}}^1$

素因数の和:63

約数の個数: 120

約数和(自身を含む): 23248512

約数和(自身を除く): 15198512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 125, 140, 161, 175, 184, 200, 230, 250, 280, 322, 350, 368, 400, 460, 500, 560, 575, 625, 644, 700, 805, 875, 920, 1000, 1150, 1250, 1288, 1400, 1610, 1750, 1840, 2000, 2300, 2500, 2576, 2800, 2875, 3125, 3220, 3500, 4025, 4375, 4600, 5000, 5750, 6250, 6440, 7000, 8050, 8750, 9200, 10000, 11500, 12500, 12880, 14000, 14375, 16100, 17500, 20125, 21875, 23000, 25000, 28750, 32200, 35000, 40250, 43750, 46000, 50000, 57500, 64400, 70000, 71875, 80500, 87500, 100625, 115000, 143750, 161000, 175000, 201250, 230000, 287500, 322000, 350000, 402500, 503125, 575000, 805000, 1006250, 1150000, 1610000, 2012500, 4025000, 8050000]

約数ペア:

[(1, 8050000), (2, 4025000), (4, 2012500), (5, 1610000), (7, 1150000), (8, 1006250), (10, 805000), (14, 575000), (16, 503125), (20, 402500), (23, 350000), (25, 322000), (28, 287500), (35, 230000), (40, 201250), (46, 175000), (50, 161000), (56, 143750), (70, 115000), (80, 100625), (92, 87500), (100, 80500), (112, 71875), (115, 70000), (125, 64400), (140, 57500), (161, 50000), (175, 46000), (184, 43750), (200, 40250), (230, 35000), (250, 32200), (280, 28750), (322, 25000), (350, 23000), (368, 21875), (400, 20125), (460, 17500), (500, 16100), (560, 14375), (575, 14000), (625, 12880), (644, 12500), (700, 11500), (805, 10000), (875, 9200), (920, 8750), (1000, 8050), (1150, 7000), (1250, 6440), (1288, 6250), (1400, 5750), (1610, 5000), (1750, 4600), (1840, 4375), (2000, 4025), (2300, 3500), (2500, 3220), (2576, 3125), (2800, 2875)]