645780988

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{317}}^1\times {\mathrm{4507}}^1$

素因数の和:4941

約数の個数: 24

約数和(自身を含む): 1143968112

約数和(自身を除く): 498187124

約数列:

[1, 2, 4, 113, 226, 317, 452, 634, 1268, 4507, 9014, 18028, 35821, 71642, 143284, 509291, 1018582, 1428719, 2037164, 2857438, 5714876, 161445247, 322890494, 645780988]

約数ペア:

[(1, 645780988), (2, 322890494), (4, 161445247), (113, 5714876), (226, 2857438), (317, 2037164), (452, 1428719), (634, 1018582), (1268, 509291), (4507, 143284), (9014, 71642), (18028, 35821)]