25921000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{23}}^2$

素因数の和:81

約数の個数: 144

約数和(自身を含む): 73759140

約数和(自身を除く): 47838140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 49, 50, 56, 70, 92, 98, 100, 115, 125, 140, 161, 175, 184, 196, 200, 230, 245, 250, 280, 322, 350, 392, 460, 490, 500, 529, 575, 644, 700, 805, 875, 920, 980, 1000, 1058, 1127, 1150, 1225, 1288, 1400, 1610, 1750, 1960, 2116, 2254, 2300, 2450, 2645, 2875, 3220, 3500, 3703, 4025, 4232, 4508, 4600, 4900, 5290, 5635, 5750, 6125, 6440, 7000, 7406, 8050, 9016, 9800, 10580, 11270, 11500, 12250, 13225, 14812, 16100, 18515, 20125, 21160, 22540, 23000, 24500, 25921, 26450, 28175, 29624, 32200, 37030, 40250, 45080, 49000, 51842, 52900, 56350, 66125, 74060, 80500, 92575, 103684, 105800, 112700, 129605, 132250, 140875, 148120, 161000, 185150, 207368, 225400, 259210, 264500, 281750, 370300, 462875, 518420, 529000, 563500, 648025, 740600, 925750, 1036840, 1127000, 1296050, 1851500, 2592100, 3240125, 3703000, 5184200, 6480250, 12960500, 25921000]

約数ペア:

[(1, 25921000), (2, 12960500), (4, 6480250), (5, 5184200), (7, 3703000), (8, 3240125), (10, 2592100), (14, 1851500), (20, 1296050), (23, 1127000), (25, 1036840), (28, 925750), (35, 740600), (40, 648025), (46, 563500), (49, 529000), (50, 518420), (56, 462875), (70, 370300), (92, 281750), (98, 264500), (100, 259210), (115, 225400), (125, 207368), (140, 185150), (161, 161000), (175, 148120), (184, 140875), (196, 132250), (200, 129605), (230, 112700), (245, 105800), (250, 103684), (280, 92575), (322, 80500), (350, 74060), (392, 66125), (460, 56350), (490, 52900), (500, 51842), (529, 49000), (575, 45080), (644, 40250), (700, 37030), (805, 32200), (875, 29624), (920, 28175), (980, 26450), (1000, 25921), (1058, 24500), (1127, 23000), (1150, 22540), (1225, 21160), (1288, 20125), (1400, 18515), (1610, 16100), (1750, 14812), (1960, 13225), (2116, 12250), (2254, 11500), (2300, 11270), (2450, 10580), (2645, 9800), (2875, 9016), (3220, 8050), (3500, 7406), (3703, 7000), (4025, 6440), (4232, 6125), (4508, 5750), (4600, 5635), (4900, 5290)]