22319420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12539}}^1$

素因数の和:12637

約数の個数: 24

約数和(自身を含む): 47401200

約数和(自身を除く): 25081780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 12539, 25078, 50156, 62695, 125390, 250780, 1115971, 2231942, 4463884, 5579855, 11159710, 22319420]

約数ペア:

[(1, 22319420), (2, 11159710), (4, 5579855), (5, 4463884), (10, 2231942), (20, 1115971), (89, 250780), (178, 125390), (356, 62695), (445, 50156), (890, 25078), (1780, 12539)]