84978660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108947}}^1$

素因数の和:108972

約数の個数: 48

約数和(自身を含む): 256245696

約数和(自身を除く): 171267036

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 108947, 217894, 326841, 435788, 544735, 653682, 1089470, 1307364, 1416311, 1634205, 2178940, 2832622, 3268410, 4248933, 5665244, 6536820, 7081555, 8497866, 14163110, 16995732, 21244665, 28326220, 42489330, 84978660]

約数ペア:

[(1, 84978660), (2, 42489330), (3, 28326220), (4, 21244665), (5, 16995732), (6, 14163110), (10, 8497866), (12, 7081555), (13, 6536820), (15, 5665244), (20, 4248933), (26, 3268410), (30, 2832622), (39, 2178940), (52, 1634205), (60, 1416311), (65, 1307364), (78, 1089470), (130, 653682), (156, 544735), (195, 435788), (260, 326841), (390, 217894), (780, 108947)]