28267740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1619}}^1$

素因数の和:1731

約数の個数: 72

約数和(自身を含む): 86682960

約数和(自身を除く): 58415220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1619, 1746, 1940, 2910, 3238, 3492, 4365, 4857, 5820, 6476, 8095, 8730, 9714, 14571, 16190, 17460, 19428, 24285, 29142, 32380, 48570, 58284, 72855, 97140, 145710, 157043, 291420, 314086, 471129, 628172, 785215, 942258, 1413387, 1570430, 1884516, 2355645, 2826774, 3140860, 4711290, 5653548, 7066935, 9422580, 14133870, 28267740]

約数ペア:

[(1, 28267740), (2, 14133870), (3, 9422580), (4, 7066935), (5, 5653548), (6, 4711290), (9, 3140860), (10, 2826774), (12, 2355645), (15, 1884516), (18, 1570430), (20, 1413387), (30, 942258), (36, 785215), (45, 628172), (60, 471129), (90, 314086), (97, 291420), (180, 157043), (194, 145710), (291, 97140), (388, 72855), (485, 58284), (582, 48570), (873, 32380), (970, 29142), (1164, 24285), (1455, 19428), (1619, 17460), (1746, 16190), (1940, 14571), (2910, 9714), (3238, 8730), (3492, 8095), (4365, 6476), (4857, 5820)]