80496220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82139}}^1$

素因数の和:82162

約数の個数: 36

約数和(自身を含む): 196643160

約数和(自身を除く): 116146940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82139, 164278, 328556, 410695, 574973, 821390, 1149946, 1642780, 2299892, 2874865, 4024811, 5749730, 8049622, 11499460, 16099244, 20124055, 40248110, 80496220]

約数ペア:

[(1, 80496220), (2, 40248110), (4, 20124055), (5, 16099244), (7, 11499460), (10, 8049622), (14, 5749730), (20, 4024811), (28, 2874865), (35, 2299892), (49, 1642780), (70, 1149946), (98, 821390), (140, 574973), (196, 410695), (245, 328556), (490, 164278), (980, 82139)]