212571880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{571}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 492972480

約数和(自身を除く): 280400600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 227, 328, 410, 454, 571, 820, 908, 1135, 1142, 1640, 1816, 2270, 2284, 2855, 4540, 4568, 5710, 9080, 9307, 11420, 18614, 22840, 23411, 37228, 46535, 46822, 74456, 93070, 93644, 117055, 129617, 186140, 187288, 234110, 259234, 372280, 468220, 518468, 648085, 936440, 1036936, 1296170, 2592340, 5184680, 5314297, 10628594, 21257188, 26571485, 42514376, 53142970, 106285940, 212571880]

約数ペア:

[(1, 212571880), (2, 106285940), (4, 53142970), (5, 42514376), (8, 26571485), (10, 21257188), (20, 10628594), (40, 5314297), (41, 5184680), (82, 2592340), (164, 1296170), (205, 1036936), (227, 936440), (328, 648085), (410, 518468), (454, 468220), (571, 372280), (820, 259234), (908, 234110), (1135, 187288), (1142, 186140), (1640, 129617), (1816, 117055), (2270, 93644), (2284, 93070), (2855, 74456), (4540, 46822), (4568, 46535), (5710, 37228), (9080, 23411), (9307, 22840), (11420, 18614)]