221702220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{8861}}^1$

素因数の和:9015

約数の個数: 72

約数和(自身を含む): 677411280

約数和(自身を除く): 455709060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 8340, 8861, 12510, 17722, 25020, 26583, 35444, 44305, 53166, 79749, 88610, 106332, 132915, 159498, 177220, 265830, 318996, 398745, 531660, 797490, 1231679, 1594980, 2463358, 3695037, 4926716, 6158395, 7390074, 11085111, 12316790, 14780148, 18475185, 22170222, 24633580, 36950370, 44340444, 55425555, 73900740, 110851110, 221702220]

約数ペア:

[(1, 221702220), (2, 110851110), (3, 73900740), (4, 55425555), (5, 44340444), (6, 36950370), (9, 24633580), (10, 22170222), (12, 18475185), (15, 14780148), (18, 12316790), (20, 11085111), (30, 7390074), (36, 6158395), (45, 4926716), (60, 3695037), (90, 2463358), (139, 1594980), (180, 1231679), (278, 797490), (417, 531660), (556, 398745), (695, 318996), (834, 265830), (1251, 177220), (1390, 159498), (1668, 132915), (2085, 106332), (2502, 88610), (2780, 79749), (4170, 53166), (5004, 44305), (6255, 35444), (8340, 26583), (8861, 25020), (12510, 17722)]