18335780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10301}}^1$

素因数の和:10399

約数の個数: 24

約数和(自身を含む): 38941560

約数和(自身を除く): 20605780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10301, 20602, 41204, 51505, 103010, 206020, 916789, 1833578, 3667156, 4583945, 9167890, 18335780]

約数ペア:

[(1, 18335780), (2, 9167890), (4, 4583945), (5, 3667156), (10, 1833578), (20, 916789), (89, 206020), (178, 103010), (356, 51505), (445, 41204), (890, 20602), (1780, 10301)]