397392052

素因数分解:

$2^2\times {\mathrm{1987}}^1\times {\mathrm{49999}}^1$

素因数の和:51990

約数の個数: 12

約数和(自身を含む): 695800000

約数和(自身を除く): 298407948

約数列:

[1, 2, 4, 1987, 3974, 7948, 49999, 99998, 199996, 99348013, 198696026, 397392052]

約数ペア:

[(1, 397392052), (2, 198696026), (4, 99348013), (1987, 199996), (3974, 99998), (7948, 49999)]