1345940

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 2850120

約数和(自身を除く): 1504180

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 389, 692, 778, 865, 1556, 1730, 1945, 3460, 3890, 7780, 67297, 134594, 269188, 336485, 672970, 1345940]

約数ペア:

[(1, 1345940), (2, 672970), (4, 336485), (5, 269188), (10, 134594), (20, 67297), (173, 7780), (346, 3890), (389, 3460), (692, 1945), (778, 1730), (865, 1556)]