128872510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{991327}}^1$

素因数の和:991347

約数の個数: 16

約数和(自身を含む): 249814656

約数和(自身を除く): 120942146

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 991327, 1982654, 4956635, 9913270, 12887251, 25774502, 64436255, 128872510]

約数ペア:

[(1, 128872510), (2, 64436255), (5, 25774502), (10, 12887251), (13, 9913270), (26, 4956635), (65, 1982654), (130, 991327)]