156940321040

素因数分解:

$2^4\times 5^1\times {\mathrm{4973}}^1\times {\mathrm{394481}}^1$

素因数の和:399467

約数の個数: 40

約数和(自身を含む): 364960545048

約数和(自身を除く): 208020224008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4973, 9946, 19892, 24865, 39784, 49730, 79568, 99460, 198920, 394481, 397840, 788962, 1577924, 1972405, 3155848, 3944810, 6311696, 7889620, 15779240, 31558480, 1961754013, 3923508026, 7847016052, 9808770065, 15694032104, 19617540130, 31388064208, 39235080260, 78470160520, 156940321040]

約数ペア:

[(1, 156940321040), (2, 78470160520), (4, 39235080260), (5, 31388064208), (8, 19617540130), (10, 15694032104), (16, 9808770065), (20, 7847016052), (40, 3923508026), (80, 1961754013), (4973, 31558480), (9946, 15779240), (19892, 7889620), (24865, 6311696), (39784, 3944810), (49730, 3155848), (79568, 1972405), (99460, 1577924), (198920, 788962), (394481, 397840)]