663126920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1\times {\mathrm{617}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 1515311280

約数和(自身を除く): 852184360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 277, 388, 485, 554, 617, 776, 970, 1108, 1234, 1385, 1940, 2216, 2468, 2770, 3085, 3880, 4936, 5540, 6170, 11080, 12340, 24680, 26869, 53738, 59849, 107476, 119698, 134345, 170909, 214952, 239396, 268690, 299245, 341818, 478792, 537380, 598490, 683636, 854545, 1074760, 1196980, 1367272, 1709090, 2393960, 3418180, 6836360, 16578173, 33156346, 66312692, 82890865, 132625384, 165781730, 331563460, 663126920]

約数ペア:

[(1, 663126920), (2, 331563460), (4, 165781730), (5, 132625384), (8, 82890865), (10, 66312692), (20, 33156346), (40, 16578173), (97, 6836360), (194, 3418180), (277, 2393960), (388, 1709090), (485, 1367272), (554, 1196980), (617, 1074760), (776, 854545), (970, 683636), (1108, 598490), (1234, 537380), (1385, 478792), (1940, 341818), (2216, 299245), (2468, 268690), (2770, 239396), (3085, 214952), (3880, 170909), (4936, 134345), (5540, 119698), (6170, 107476), (11080, 59849), (12340, 53738), (24680, 26869)]