20335588

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 46654272

約数和(自身を除く): 26318684

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 49, 52, 91, 92, 98, 161, 182, 196, 299, 322, 347, 364, 598, 637, 644, 694, 1127, 1196, 1274, 1388, 2093, 2254, 2429, 2548, 4186, 4508, 4511, 4858, 7981, 8372, 9022, 9716, 14651, 15962, 17003, 18044, 29302, 31577, 31924, 34006, 55867, 58604, 63154, 68012, 103753, 111734, 126308, 207506, 221039, 223468, 391069, 415012, 442078, 726271, 782138, 884156, 1452542, 1564276, 2905084, 5083897, 10167794, 20335588]

約数ペア:

[(1, 20335588), (2, 10167794), (4, 5083897), (7, 2905084), (13, 1564276), (14, 1452542), (23, 884156), (26, 782138), (28, 726271), (46, 442078), (49, 415012), (52, 391069), (91, 223468), (92, 221039), (98, 207506), (161, 126308), (182, 111734), (196, 103753), (299, 68012), (322, 63154), (347, 58604), (364, 55867), (598, 34006), (637, 31924), (644, 31577), (694, 29302), (1127, 18044), (1196, 17003), (1274, 15962), (1388, 14651), (2093, 9716), (2254, 9022), (2429, 8372), (2548, 7981), (4186, 4858), (4508, 4511)]