16445420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9239}}^1$

素因数の和:9337

約数の個数: 24

約数和(自身を含む): 34927200

約数和(自身を除く): 18481780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 9239, 18478, 36956, 46195, 92390, 184780, 822271, 1644542, 3289084, 4111355, 8222710, 16445420]

約数ペア:

[(1, 16445420), (2, 8222710), (4, 4111355), (5, 3289084), (10, 1644542), (20, 822271), (89, 184780), (178, 92390), (356, 46195), (445, 36956), (890, 18478), (1780, 9239)]