397700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 893172

約数和(自身を除く): 495472

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 97, 100, 164, 194, 205, 388, 410, 485, 820, 970, 1025, 1940, 2050, 2425, 3977, 4100, 4850, 7954, 9700, 15908, 19885, 39770, 79540, 99425, 198850, 397700]

約数ペア:

[(1, 397700), (2, 198850), (4, 99425), (5, 79540), (10, 39770), (20, 19885), (25, 15908), (41, 9700), (50, 7954), (82, 4850), (97, 4100), (100, 3977), (164, 2425), (194, 2050), (205, 1940), (388, 1025), (410, 970), (485, 820)]