22719920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3191}}^1$

素因数の和:3293

約数の個数: 40

約数和(自身を含む): 53434080

約数和(自身を除く): 30714160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3191, 3560, 6382, 7120, 12764, 15955, 25528, 31910, 51056, 63820, 127640, 255280, 283999, 567998, 1135996, 1419995, 2271992, 2839990, 4543984, 5679980, 11359960, 22719920]

約数ペア:

[(1, 22719920), (2, 11359960), (4, 5679980), (5, 4543984), (8, 2839990), (10, 2271992), (16, 1419995), (20, 1135996), (40, 567998), (80, 283999), (89, 255280), (178, 127640), (356, 63820), (445, 51056), (712, 31910), (890, 25528), (1424, 15955), (1780, 12764), (3191, 7120), (3560, 6382)]