160820920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309271}}^1$

素因数の和:309295

約数の個数: 32

約数和(自身を含む): 389682720

約数和(自身を除く): 228861800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 309271, 618542, 1237084, 1546355, 2474168, 3092710, 4020523, 6185420, 8041046, 12370840, 16082092, 20102615, 32164184, 40205230, 80410460, 160820920]

約数ペア:

[(1, 160820920), (2, 80410460), (4, 40205230), (5, 32164184), (8, 20102615), (10, 16082092), (13, 12370840), (20, 8041046), (26, 6185420), (40, 4020523), (52, 3092710), (65, 2474168), (104, 1546355), (130, 1237084), (260, 618542), (520, 309271)]