66672112

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320539}}^1$

素因数の和:320560

約数の個数: 20

約数和(自身を含む): 139114360

約数和(自身を除く): 72442248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320539, 641078, 1282156, 2564312, 4167007, 5128624, 8334014, 16668028, 33336056, 66672112]

約数ペア:

[(1, 66672112), (2, 33336056), (4, 16668028), (8, 8334014), (13, 5128624), (16, 4167007), (26, 2564312), (52, 1282156), (104, 641078), (208, 320539)]