72499780

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{18979}}^1$

素因数の和:19179

約数の個数: 24

約数和(自身を含む): 153054720

約数和(自身を除く): 80554940

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 18979, 37958, 75916, 94895, 189790, 379580, 3624989, 7249978, 14499956, 18124945, 36249890, 72499780]

約数ペア:

[(1, 72499780), (2, 36249890), (4, 18124945), (5, 14499956), (10, 7249978), (20, 3624989), (191, 379580), (382, 189790), (764, 94895), (955, 75916), (1910, 37958), (3820, 18979)]