1916506520

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1\times {\mathrm{2543}}^1$

素因数の和:2864

約数の個数: 64

約数和(自身を含む): 4385041920

約数和(自身を除く): 2468535400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 227, 332, 415, 454, 664, 830, 908, 1135, 1660, 1816, 2270, 2543, 3320, 4540, 5086, 9080, 10172, 12715, 18841, 20344, 25430, 37682, 50860, 75364, 94205, 101720, 150728, 188410, 211069, 376820, 422138, 577261, 753640, 844276, 1055345, 1154522, 1688552, 2110690, 2309044, 2886305, 4221380, 4618088, 5772610, 8442760, 11545220, 23090440, 47912663, 95825326, 191650652, 239563315, 383301304, 479126630, 958253260, 1916506520]

約数ペア:

[(1, 1916506520), (2, 958253260), (4, 479126630), (5, 383301304), (8, 239563315), (10, 191650652), (20, 95825326), (40, 47912663), (83, 23090440), (166, 11545220), (227, 8442760), (332, 5772610), (415, 4618088), (454, 4221380), (664, 2886305), (830, 2309044), (908, 2110690), (1135, 1688552), (1660, 1154522), (1816, 1055345), (2270, 844276), (2543, 753640), (3320, 577261), (4540, 422138), (5086, 376820), (9080, 211069), (10172, 188410), (12715, 150728), (18841, 101720), (20344, 94205), (25430, 75364), (37682, 50860)]