28660970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{220469}}^1$

素因数の和:220489

約数の個数: 16

約数和(自身を含む): 55558440

約数和(自身を除く): 26897470

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 220469, 440938, 1102345, 2204690, 2866097, 5732194, 14330485, 28660970]

約数ペア:

[(1, 28660970), (2, 14330485), (5, 5732194), (10, 2866097), (13, 2204690), (26, 1102345), (65, 440938), (130, 220469)]