401020688

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1319147}}^1$

素因数の和:1319174

約数の個数: 20

約数和(自身を含む): 817871760

約数和(自身を除く): 416851072

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1319147, 2638294, 5276588, 10553176, 21106352, 25063793, 50127586, 100255172, 200510344, 401020688]

約数ペア:

[(1, 401020688), (2, 200510344), (4, 100255172), (8, 50127586), (16, 25063793), (19, 21106352), (38, 10553176), (76, 5276588), (152, 2638294), (304, 1319147)]