26397850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 51246720

約数和(自身を除く): 24848870

約数列:

[1, 2, 5, 10, 25, 41, 50, 79, 82, 158, 163, 205, 326, 395, 410, 790, 815, 1025, 1630, 1975, 2050, 3239, 3950, 4075, 6478, 6683, 8150, 12877, 13366, 16195, 25754, 32390, 33415, 64385, 66830, 80975, 128770, 161950, 167075, 321925, 334150, 527957, 643850, 1055914, 2639785, 5279570, 13198925, 26397850]

約数ペア:

[(1, 26397850), (2, 13198925), (5, 5279570), (10, 2639785), (25, 1055914), (41, 643850), (50, 527957), (79, 334150), (82, 321925), (158, 167075), (163, 161950), (205, 128770), (326, 80975), (395, 66830), (410, 64385), (790, 33415), (815, 32390), (1025, 25754), (1630, 16195), (1975, 13366), (2050, 12877), (3239, 8150), (3950, 6683), (4075, 6478)]