26881540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1223}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 64979712

約数和(自身を除く): 38098172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1223, 1570, 2198, 2446, 3140, 4396, 4892, 5495, 6115, 8561, 10990, 12230, 17122, 21980, 24460, 34244, 42805, 85610, 171220, 192011, 384022, 768044, 960055, 1344077, 1920110, 2688154, 3840220, 5376308, 6720385, 13440770, 26881540]

約数ペア:

[(1, 26881540), (2, 13440770), (4, 6720385), (5, 5376308), (7, 3840220), (10, 2688154), (14, 1920110), (20, 1344077), (28, 960055), (35, 768044), (70, 384022), (140, 192011), (157, 171220), (314, 85610), (628, 42805), (785, 34244), (1099, 24460), (1223, 21980), (1570, 17122), (2198, 12230), (2446, 10990), (3140, 8561), (4396, 6115), (4892, 5495)]