20674520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16673}}^1$

素因数の和:16715

約数の個数: 32

約数和(自身を含む): 48021120

約数和(自身を除く): 27346600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16673, 33346, 66692, 83365, 133384, 166730, 333460, 516863, 666920, 1033726, 2067452, 2584315, 4134904, 5168630, 10337260, 20674520]

約数ペア:

[(1, 20674520), (2, 10337260), (4, 5168630), (5, 4134904), (8, 2584315), (10, 2067452), (20, 1033726), (31, 666920), (40, 516863), (62, 333460), (124, 166730), (155, 133384), (248, 83365), (310, 66692), (620, 33346), (1240, 16673)]