217966970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{12799}}^1$

素因数の和:12950

約数の個数: 32

約数和(自身を含む): 425779200

約数和(自身を除く): 207812230

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1310, 1703, 3406, 8515, 12799, 17030, 25598, 63995, 127990, 166387, 332774, 831935, 1663870, 1676669, 3353338, 8383345, 16766690, 21796697, 43593394, 108983485, 217966970]

約数ペア:

[(1, 217966970), (2, 108983485), (5, 43593394), (10, 21796697), (13, 16766690), (26, 8383345), (65, 3353338), (130, 1676669), (131, 1663870), (262, 831935), (655, 332774), (1310, 166387), (1703, 127990), (3406, 63995), (8515, 25598), (12799, 17030)]