28720970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151163}}^1$

素因数の和:151189

約数の個数: 16

約数和(自身を含む): 54419040

約数和(自身を除く): 25698070

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 151163, 302326, 755815, 1511630, 2872097, 5744194, 14360485, 28720970]

約数ペア:

[(1, 28720970), (2, 14360485), (5, 5744194), (10, 2872097), (19, 1511630), (38, 755815), (95, 302326), (190, 151163)]