20878730

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{773}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 39176784

約数和(自身を除く): 18298054

約数列:

[1, 2, 5, 10, 37, 73, 74, 146, 185, 365, 370, 730, 773, 1546, 2701, 3865, 5402, 7730, 13505, 27010, 28601, 56429, 57202, 112858, 143005, 282145, 286010, 564290, 2087873, 4175746, 10439365, 20878730]

約数ペア:

[(1, 20878730), (2, 10439365), (5, 4175746), (10, 2087873), (37, 564290), (73, 286010), (74, 282145), (146, 143005), (185, 112858), (365, 57202), (370, 56429), (730, 28601), (773, 27010), (1546, 13505), (2701, 7730), (3865, 5402)]