179680991

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 232888320

約数和(自身を除く): 53207329

約数列:

[1, 7, 23, 31, 37, 49, 139, 161, 217, 259, 713, 851, 973, 1127, 1147, 1519, 1813, 3197, 4309, 4991, 5143, 5957, 6811, 8029, 22379, 26381, 30163, 34937, 36001, 41699, 56203, 99107, 118289, 156653, 159433, 184667, 211141, 252007, 693749, 828023, 1116031, 1292669, 3666959, 4856243, 5796161, 7812217, 25668713, 179680991]

約数ペア:

[(1, 179680991), (7, 25668713), (23, 7812217), (31, 5796161), (37, 4856243), (49, 3666959), (139, 1292669), (161, 1116031), (217, 828023), (259, 693749), (713, 252007), (851, 211141), (973, 184667), (1127, 159433), (1147, 156653), (1519, 118289), (1813, 99107), (3197, 56203), (4309, 41699), (4991, 36001), (5143, 34937), (5957, 30163), (6811, 26381), (8029, 22379)]