128973904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{277961}}^1$

素因数の和:277998

約数の個数: 20

約数和(自身を含む): 258504660

約数和(自身を除く): 129530756

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 277961, 555922, 1111844, 2223688, 4447376, 8060869, 16121738, 32243476, 64486952, 128973904]

約数ペア:

[(1, 128973904), (2, 64486952), (4, 32243476), (8, 16121738), (16, 8060869), (29, 4447376), (58, 2223688), (116, 1111844), (232, 555922), (464, 277961)]