89406190

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:768

約数の個数: 32

約数和(自身を含む): 163658880

約数和(自身を除く): 74252690

約数列:

[1, 2, 5, 10, 131, 139, 262, 278, 491, 655, 695, 982, 1310, 1390, 2455, 4910, 18209, 36418, 64321, 68249, 91045, 128642, 136498, 182090, 321605, 341245, 643210, 682490, 8940619, 17881238, 44703095, 89406190]

約数ペア:

[(1, 89406190), (2, 44703095), (5, 17881238), (10, 8940619), (131, 682490), (139, 643210), (262, 341245), (278, 321605), (491, 182090), (655, 136498), (695, 128642), (982, 91045), (1310, 68249), (1390, 64321), (2455, 36418), (4910, 18209)]