213387880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4651}}^1$

素因数の和:4730

約数の個数: 64

約数和(自身を含む): 509114880

約数和(自身を除く): 295727000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1480, 2294, 4588, 4651, 5735, 9176, 9302, 11470, 18604, 22940, 23255, 37208, 45880, 46510, 93020, 144181, 172087, 186040, 288362, 344174, 576724, 688348, 720905, 860435, 1153448, 1376696, 1441810, 1720870, 2883620, 3441740, 5334697, 5767240, 6883480, 10669394, 21338788, 26673485, 42677576, 53346970, 106693940, 213387880]

約数ペア:

[(1, 213387880), (2, 106693940), (4, 53346970), (5, 42677576), (8, 26673485), (10, 21338788), (20, 10669394), (31, 6883480), (37, 5767240), (40, 5334697), (62, 3441740), (74, 2883620), (124, 1720870), (148, 1441810), (155, 1376696), (185, 1153448), (248, 860435), (296, 720905), (310, 688348), (370, 576724), (620, 344174), (740, 288362), (1147, 186040), (1240, 172087), (1480, 144181), (2294, 93020), (4588, 46510), (4651, 45880), (5735, 37208), (9176, 23255), (9302, 22940), (11470, 18604)]