384820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 822528

約数和(自身を除く): 437708

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 271, 284, 355, 542, 710, 1084, 1355, 1420, 2710, 5420, 19241, 38482, 76964, 96205, 192410, 384820]

約数ペア:

[(1, 384820), (2, 192410), (4, 96205), (5, 76964), (10, 38482), (20, 19241), (71, 5420), (142, 2710), (271, 1420), (284, 1355), (355, 1084), (542, 710)]