660860

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 1403136

約数和(自身を除く): 742276

約数列:

[1, 2, 4, 5, 10, 20, 173, 191, 346, 382, 692, 764, 865, 955, 1730, 1910, 3460, 3820, 33043, 66086, 132172, 165215, 330430, 660860]

約数ペア:

[(1, 660860), (2, 330430), (4, 165215), (5, 132172), (10, 66086), (20, 33043), (173, 3820), (191, 3460), (346, 1910), (382, 1730), (692, 955), (764, 865)]