25920400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:209

約数の個数: 120

約数和(自身を含む): 70022304

約数和(自身を除く): 44101904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 43, 44, 50, 55, 80, 86, 88, 100, 110, 137, 172, 176, 200, 215, 220, 274, 275, 344, 400, 430, 440, 473, 548, 550, 685, 688, 860, 880, 946, 1075, 1096, 1100, 1370, 1507, 1720, 1892, 2150, 2192, 2200, 2365, 2740, 3014, 3425, 3440, 3784, 4300, 4400, 4730, 5480, 5891, 6028, 6850, 7535, 7568, 8600, 9460, 10960, 11782, 11825, 12056, 13700, 15070, 17200, 18920, 23564, 23650, 24112, 27400, 29455, 30140, 37675, 37840, 47128, 47300, 54800, 58910, 60280, 64801, 75350, 94256, 94600, 117820, 120560, 129602, 147275, 150700, 189200, 235640, 259204, 294550, 301400, 324005, 471280, 518408, 589100, 602800, 648010, 1036816, 1178200, 1296020, 1620025, 2356400, 2592040, 3240050, 5184080, 6480100, 12960200, 25920400]

約数ペア:

[(1, 25920400), (2, 12960200), (4, 6480100), (5, 5184080), (8, 3240050), (10, 2592040), (11, 2356400), (16, 1620025), (20, 1296020), (22, 1178200), (25, 1036816), (40, 648010), (43, 602800), (44, 589100), (50, 518408), (55, 471280), (80, 324005), (86, 301400), (88, 294550), (100, 259204), (110, 235640), (137, 189200), (172, 150700), (176, 147275), (200, 129602), (215, 120560), (220, 117820), (274, 94600), (275, 94256), (344, 75350), (400, 64801), (430, 60280), (440, 58910), (473, 54800), (548, 47300), (550, 47128), (685, 37840), (688, 37675), (860, 30140), (880, 29455), (946, 27400), (1075, 24112), (1096, 23650), (1100, 23564), (1370, 18920), (1507, 17200), (1720, 15070), (1892, 13700), (2150, 12056), (2192, 11825), (2200, 11782), (2365, 10960), (2740, 9460), (3014, 8600), (3425, 7568), (3440, 7535), (3784, 6850), (4300, 6028), (4400, 5891), (4730, 5480)]