79828040

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{7951}}^1$

素因数の和:8213

約数の個数: 32

約数和(自身を含む): 180351360

約数和(自身を除く): 100523320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 7951, 10040, 15902, 31804, 39755, 63608, 79510, 159020, 318040, 1995701, 3991402, 7982804, 9978505, 15965608, 19957010, 39914020, 79828040]

約数ペア:

[(1, 79828040), (2, 39914020), (4, 19957010), (5, 15965608), (8, 9978505), (10, 7982804), (20, 3991402), (40, 1995701), (251, 318040), (502, 159020), (1004, 79510), (1255, 63608), (2008, 39755), (2510, 31804), (5020, 15902), (7951, 10040)]