21922480

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3079}}^1$

素因数の和:3181

約数の個数: 40

約数和(自身を含む): 51559200

約数和(自身を除く): 29636720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3079, 3560, 6158, 7120, 12316, 15395, 24632, 30790, 49264, 61580, 123160, 246320, 274031, 548062, 1096124, 1370155, 2192248, 2740310, 4384496, 5480620, 10961240, 21922480]

約数ペア:

[(1, 21922480), (2, 10961240), (4, 5480620), (5, 4384496), (8, 2740310), (10, 2192248), (16, 1370155), (20, 1096124), (40, 548062), (80, 274031), (89, 246320), (178, 123160), (356, 61580), (445, 49264), (712, 30790), (890, 24632), (1424, 15395), (1780, 12316), (3079, 7120), (3560, 6158)]