156640940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{412213}}^1$

素因数の和:412241

約数の個数: 24

約数和(自身を含む): 346259760

約数和(自身を除く): 189618820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 412213, 824426, 1648852, 2061065, 4122130, 7832047, 8244260, 15664094, 31328188, 39160235, 78320470, 156640940]

約数ペア:

[(1, 156640940), (2, 78320470), (4, 39160235), (5, 31328188), (10, 15664094), (19, 8244260), (20, 7832047), (38, 4122130), (76, 2061065), (95, 1648852), (190, 824426), (380, 412213)]