1642991978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{2539}}^1\times {\mathrm{17029}}^1$

素因数の和:19589

約数の個数: 16

約数和(自身を含む): 2595372000

約数和(自身を除く): 952380022

約数列:

[1, 2, 19, 38, 2539, 5078, 17029, 34058, 48241, 96482, 323551, 647102, 43236631, 86473262, 821495989, 1642991978]

約数ペア:

[(1, 1642991978), (2, 821495989), (19, 86473262), (38, 43236631), (2539, 647102), (5078, 323551), (17029, 96482), (34058, 48241)]