40028020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 86929920

約数和(自身を除く): 46901900

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 97, 188, 194, 235, 388, 439, 470, 485, 878, 940, 970, 1756, 1940, 2195, 4390, 4559, 8780, 9118, 18236, 20633, 22795, 41266, 42583, 45590, 82532, 85166, 91180, 103165, 170332, 206330, 212915, 412660, 425830, 851660, 2001401, 4002802, 8005604, 10007005, 20014010, 40028020]

約数ペア:

[(1, 40028020), (2, 20014010), (4, 10007005), (5, 8005604), (10, 4002802), (20, 2001401), (47, 851660), (94, 425830), (97, 412660), (188, 212915), (194, 206330), (235, 170332), (388, 103165), (439, 91180), (470, 85166), (485, 82532), (878, 45590), (940, 42583), (970, 41266), (1756, 22795), (1940, 20633), (2195, 18236), (4390, 9118), (4559, 8780)]