204647905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 323813376

約数和(自身を除く): 119165471

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 121, 161, 191, 253, 385, 605, 805, 847, 955, 1265, 1331, 1337, 1771, 2101, 2783, 4235, 4393, 6655, 6685, 8855, 9317, 10505, 13915, 14707, 19481, 21965, 23111, 30613, 30751, 46585, 48323, 73535, 97405, 115555, 153065, 153755, 161777, 214291, 241615, 254221, 338261, 531553, 808885, 1071455, 1271105, 1691305, 1779547, 2657765, 3720871, 5847083, 8897735, 18604355, 29235415, 40929581, 204647905]

約数ペア:

[(1, 204647905), (5, 40929581), (7, 29235415), (11, 18604355), (23, 8897735), (35, 5847083), (55, 3720871), (77, 2657765), (115, 1779547), (121, 1691305), (161, 1271105), (191, 1071455), (253, 808885), (385, 531553), (605, 338261), (805, 254221), (847, 241615), (955, 214291), (1265, 161777), (1331, 153755), (1337, 153065), (1771, 115555), (2101, 97405), (2783, 73535), (4235, 48323), (4393, 46585), (6655, 30751), (6685, 30613), (8855, 23111), (9317, 21965), (10505, 19481), (13915, 14707)]