156780440

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{20521}}^1$

素因数の和:20723

約数の個数: 32

約数和(自身を含む): 354620160

約数和(自身を除く): 197839720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 20521, 41042, 82084, 102605, 164168, 205210, 410420, 820840, 3919511, 7839022, 15678044, 19597555, 31356088, 39195110, 78390220, 156780440]

約数ペア:

[(1, 156780440), (2, 78390220), (4, 39195110), (5, 31356088), (8, 19597555), (10, 15678044), (20, 7839022), (40, 3919511), (191, 820840), (382, 410420), (764, 205210), (955, 164168), (1528, 102605), (1910, 82084), (3820, 41042), (7640, 20521)]