201830020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205949}}^1$

素因数の和:205972

約数の個数: 36

約数和(自身を含む): 493044300

約数和(自身を除く): 291214280

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205949, 411898, 823796, 1029745, 1441643, 2059490, 2883286, 4118980, 5766572, 7208215, 10091501, 14416430, 20183002, 28832860, 40366004, 50457505, 100915010, 201830020]

約数ペア:

[(1, 201830020), (2, 100915010), (4, 50457505), (5, 40366004), (7, 28832860), (10, 20183002), (14, 14416430), (20, 10091501), (28, 7208215), (35, 5766572), (49, 4118980), (70, 2883286), (98, 2059490), (140, 1441643), (196, 1029745), (245, 823796), (490, 411898), (980, 205949)]