20951350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1981

約数の個数: 48

約数和(自身を含む): 45997056

約数和(自身を除く): 25045706

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1931, 2170, 3862, 5425, 9655, 10850, 13517, 19310, 27034, 48275, 59861, 67585, 96550, 119722, 135170, 299305, 337925, 419027, 598610, 675850, 838054, 1496525, 2095135, 2993050, 4190270, 10475675, 20951350]

約数ペア:

[(1, 20951350), (2, 10475675), (5, 4190270), (7, 2993050), (10, 2095135), (14, 1496525), (25, 838054), (31, 675850), (35, 598610), (50, 419027), (62, 337925), (70, 299305), (155, 135170), (175, 119722), (217, 96550), (310, 67585), (350, 59861), (434, 48275), (775, 27034), (1085, 19310), (1550, 13517), (1931, 10850), (2170, 9655), (3862, 5425)]