131220208

素因数分解:

$2^4\times 7^1\times {\mathrm{151}}^1\times {\mathrm{7759}}^1$

素因数の和:7925

約数の個数: 40

約数和(自身を含む): 292520960

約数和(自身を除く): 161300752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 151, 302, 604, 1057, 1208, 2114, 2416, 4228, 7759, 8456, 15518, 16912, 31036, 54313, 62072, 108626, 124144, 217252, 434504, 869008, 1171609, 2343218, 4686436, 8201263, 9372872, 16402526, 18745744, 32805052, 65610104, 131220208]

約数ペア:

[(1, 131220208), (2, 65610104), (4, 32805052), (7, 18745744), (8, 16402526), (14, 9372872), (16, 8201263), (28, 4686436), (56, 2343218), (112, 1171609), (151, 869008), (302, 434504), (604, 217252), (1057, 124144), (1208, 108626), (2114, 62072), (2416, 54313), (4228, 31036), (7759, 16912), (8456, 15518)]