28520120

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{3733}}^1$

素因数の和:3935

約数の個数: 32

約数和(自身を含む): 64523520

約数和(自身を除く): 36003400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3733, 3820, 7466, 7640, 14932, 18665, 29864, 37330, 74660, 149320, 713003, 1426006, 2852012, 3565015, 5704024, 7130030, 14260060, 28520120]

約数ペア:

[(1, 28520120), (2, 14260060), (4, 7130030), (5, 5704024), (8, 3565015), (10, 2852012), (20, 1426006), (40, 713003), (191, 149320), (382, 74660), (764, 37330), (955, 29864), (1528, 18665), (1910, 14932), (3733, 7640), (3820, 7466)]