208701610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{51787}}^1$

素因数の和:51838

約数の個数: 32

約数和(自身を含む): 417618432

約数和(自身を除く): 208916822

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 51787, 103574, 258935, 517870, 673231, 1346462, 1605397, 3210794, 3366155, 6732310, 8026985, 16053970, 20870161, 41740322, 104350805, 208701610]

約数ペア:

[(1, 208701610), (2, 104350805), (5, 41740322), (10, 20870161), (13, 16053970), (26, 8026985), (31, 6732310), (62, 3366155), (65, 3210794), (130, 1605397), (155, 1346462), (310, 673231), (403, 517870), (806, 258935), (2015, 103574), (4030, 51787)]