28609940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{16073}}^1$

素因数の和:16171

約数の個数: 24

約数和(自身を含む): 60759720

約数和(自身を除く): 32149780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 16073, 32146, 64292, 80365, 160730, 321460, 1430497, 2860994, 5721988, 7152485, 14304970, 28609940]

約数ペア:

[(1, 28609940), (2, 14304970), (4, 7152485), (5, 5721988), (10, 2860994), (20, 1430497), (89, 321460), (178, 160730), (356, 80365), (445, 64292), (890, 32146), (1780, 16073)]