1285754990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9890423}}^1$

素因数の和:9890443

約数の個数: 16

約数和(自身を含む): 2492386848

約数和(自身を除く): 1206631858

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 9890423, 19780846, 49452115, 98904230, 128575499, 257150998, 642877495, 1285754990]

約数ペア:

[(1, 1285754990), (2, 642877495), (5, 257150998), (10, 128575499), (13, 98904230), (26, 49452115), (65, 19780846), (130, 9890423)]