28685590

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 52799040

約数和(自身を除く): 24113450

約数列:

[1, 2, 5, 10, 89, 167, 178, 193, 334, 386, 445, 835, 890, 965, 1670, 1930, 14863, 17177, 29726, 32231, 34354, 64462, 74315, 85885, 148630, 161155, 171770, 322310, 2868559, 5737118, 14342795, 28685590]

約数ペア:

[(1, 28685590), (2, 14342795), (5, 5737118), (10, 2868559), (89, 322310), (167, 171770), (178, 161155), (193, 148630), (334, 85885), (386, 74315), (445, 64462), (835, 34354), (890, 32231), (965, 29726), (1670, 17177), (1930, 14863)]