129711940

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{37489}}^1$

素因数の和:37671

約数の個数: 24

約数和(自身を含む): 273976920

約数和(自身を除く): 144264980

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 37489, 74978, 149956, 187445, 374890, 749780, 6485597, 12971194, 25942388, 32427985, 64855970, 129711940]

約数ペア:

[(1, 129711940), (2, 64855970), (4, 32427985), (5, 25942388), (10, 12971194), (20, 6485597), (173, 749780), (346, 374890), (692, 187445), (865, 149956), (1730, 74978), (3460, 37489)]