164057120

素因数分解:

$2^5\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2557}}^1$

素因数の和:2973

約数の個数: 48

約数和(自身を含む): 388703448

約数和(自身を除く): 224646328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 401, 802, 1604, 2005, 2557, 3208, 4010, 5114, 6416, 8020, 10228, 12785, 12832, 16040, 20456, 25570, 32080, 40912, 51140, 64160, 81824, 102280, 204560, 409120, 1025357, 2050714, 4101428, 5126785, 8202856, 10253570, 16405712, 20507140, 32811424, 41014280, 82028560, 164057120]

約数ペア:

[(1, 164057120), (2, 82028560), (4, 41014280), (5, 32811424), (8, 20507140), (10, 16405712), (16, 10253570), (20, 8202856), (32, 5126785), (40, 4101428), (80, 2050714), (160, 1025357), (401, 409120), (802, 204560), (1604, 102280), (2005, 81824), (2557, 64160), (3208, 51140), (4010, 40912), (5114, 32080), (6416, 25570), (8020, 20456), (10228, 16040), (12785, 12832)]