156945940

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{20173}}^1$

素因数の和:20571

約数の個数: 24

約数和(自身を含む): 330450120

約数和(自身を除く): 173504180

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 20173, 40346, 80692, 100865, 201730, 403460, 7847297, 15694594, 31389188, 39236485, 78472970, 156945940]

約数ペア:

[(1, 156945940), (2, 78472970), (4, 39236485), (5, 31389188), (10, 15694594), (20, 7847297), (389, 403460), (778, 201730), (1556, 100865), (1945, 80692), (3890, 40346), (7780, 20173)]