280255250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 576156672

約数和(自身を除く): 295901422

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 223, 250, 275, 446, 457, 550, 914, 1115, 1375, 2230, 2285, 2453, 2750, 4570, 4906, 5027, 5575, 10054, 11150, 11425, 12265, 22850, 24530, 25135, 27875, 50270, 55750, 57125, 61325, 101911, 114250, 122650, 125675, 203822, 251350, 306625, 509555, 613250, 628375, 1019110, 1121021, 1256750, 2242042, 2547775, 5095550, 5605105, 11210210, 12738875, 25477750, 28025525, 56051050, 140127625, 280255250]

約数ペア:

[(1, 280255250), (2, 140127625), (5, 56051050), (10, 28025525), (11, 25477750), (22, 12738875), (25, 11210210), (50, 5605105), (55, 5095550), (110, 2547775), (125, 2242042), (223, 1256750), (250, 1121021), (275, 1019110), (446, 628375), (457, 613250), (550, 509555), (914, 306625), (1115, 251350), (1375, 203822), (2230, 125675), (2285, 122650), (2453, 114250), (2750, 101911), (4570, 61325), (4906, 57125), (5027, 55750), (5575, 50270), (10054, 27875), (11150, 25135), (11425, 24530), (12265, 22850)]