278317442

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{345307}}^1$

素因数の和:345353

約数の個数: 16

約数和(自身を含む): 464093952

約数和(自身を除く): 185776510

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 345307, 690614, 4488991, 8977982, 10704517, 21409034, 139158721, 278317442]

約数ペア:

[(1, 278317442), (2, 139158721), (13, 21409034), (26, 10704517), (31, 8977982), (62, 4488991), (403, 690614), (806, 345307)]