20184920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72089}}^1$

素因数の和:72107

約数の個数: 32

約数和(自身を含む): 51904800

約数和(自身を除く): 31719880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72089, 144178, 288356, 360445, 504623, 576712, 720890, 1009246, 1441780, 2018492, 2523115, 2883560, 4036984, 5046230, 10092460, 20184920]

約数ペア:

[(1, 20184920), (2, 10092460), (4, 5046230), (5, 4036984), (7, 2883560), (8, 2523115), (10, 2018492), (14, 1441780), (20, 1009246), (28, 720890), (35, 576712), (40, 504623), (56, 360445), (70, 288356), (140, 144178), (280, 72089)]