20041910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3217}}^1$

素因数の和:3320

約数の個数: 32

約数和(自身を含む): 41705280

約数和(自身を除く): 21663370

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3217, 6230, 6434, 16085, 22519, 32170, 45038, 112595, 225190, 286313, 572626, 1431565, 2004191, 2863130, 4008382, 10020955, 20041910]

約数ペア:

[(1, 20041910), (2, 10020955), (5, 4008382), (7, 2863130), (10, 2004191), (14, 1431565), (35, 572626), (70, 286313), (89, 225190), (178, 112595), (445, 45038), (623, 32170), (890, 22519), (1246, 16085), (3115, 6434), (3217, 6230)]