81448400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:309

約数の個数: 120

約数和(自身を含む): 216709344

約数和(自身を除く): 135260944

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 107, 110, 173, 176, 200, 214, 220, 275, 346, 400, 428, 440, 535, 550, 692, 856, 865, 880, 1070, 1100, 1177, 1384, 1712, 1730, 1903, 2140, 2200, 2354, 2675, 2768, 3460, 3806, 4280, 4325, 4400, 4708, 5350, 5885, 6920, 7612, 8560, 8650, 9416, 9515, 10700, 11770, 13840, 15224, 17300, 18511, 18832, 19030, 21400, 23540, 29425, 30448, 34600, 37022, 38060, 42800, 47080, 47575, 58850, 69200, 74044, 76120, 92555, 94160, 95150, 117700, 148088, 152240, 185110, 190300, 203621, 235400, 296176, 370220, 380600, 407242, 462775, 470800, 740440, 761200, 814484, 925550, 1018105, 1480880, 1628968, 1851100, 2036210, 3257936, 3702200, 4072420, 5090525, 7404400, 8144840, 10181050, 16289680, 20362100, 40724200, 81448400]

約数ペア:

[(1, 81448400), (2, 40724200), (4, 20362100), (5, 16289680), (8, 10181050), (10, 8144840), (11, 7404400), (16, 5090525), (20, 4072420), (22, 3702200), (25, 3257936), (40, 2036210), (44, 1851100), (50, 1628968), (55, 1480880), (80, 1018105), (88, 925550), (100, 814484), (107, 761200), (110, 740440), (173, 470800), (176, 462775), (200, 407242), (214, 380600), (220, 370220), (275, 296176), (346, 235400), (400, 203621), (428, 190300), (440, 185110), (535, 152240), (550, 148088), (692, 117700), (856, 95150), (865, 94160), (880, 92555), (1070, 76120), (1100, 74044), (1177, 69200), (1384, 58850), (1712, 47575), (1730, 47080), (1903, 42800), (2140, 38060), (2200, 37022), (2354, 34600), (2675, 30448), (2768, 29425), (3460, 23540), (3806, 21400), (4280, 19030), (4325, 18832), (4400, 18511), (4708, 17300), (5350, 15224), (5885, 13840), (6920, 11770), (7612, 10700), (8560, 9515), (8650, 9416)]