18213250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 38413440

約数和(自身を除く): 20200190

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 125, 179, 185, 250, 275, 358, 370, 407, 550, 814, 895, 925, 1375, 1790, 1850, 1969, 2035, 2750, 3938, 4070, 4475, 4625, 6623, 8950, 9250, 9845, 10175, 13246, 19690, 20350, 22375, 33115, 44750, 49225, 50875, 66230, 72853, 98450, 101750, 145706, 165575, 246125, 331150, 364265, 492250, 728530, 827875, 1655750, 1821325, 3642650, 9106625, 18213250]

約数ペア:

[(1, 18213250), (2, 9106625), (5, 3642650), (10, 1821325), (11, 1655750), (22, 827875), (25, 728530), (37, 492250), (50, 364265), (55, 331150), (74, 246125), (110, 165575), (125, 145706), (179, 101750), (185, 98450), (250, 72853), (275, 66230), (358, 50875), (370, 49225), (407, 44750), (550, 33115), (814, 22375), (895, 20350), (925, 19690), (1375, 13246), (1790, 10175), (1850, 9845), (1969, 9250), (2035, 8950), (2750, 6623), (3938, 4625), (4070, 4475)]