80475320

素因数分解:

$2^3\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{1523}}^1$

素因数の和:2855

約数の個数: 32

約数和(自身を含む): 181325520

約数和(自身を除く): 100850200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1321, 1523, 2642, 3046, 5284, 6092, 6605, 7615, 10568, 12184, 13210, 15230, 26420, 30460, 52840, 60920, 2011883, 4023766, 8047532, 10059415, 16095064, 20118830, 40237660, 80475320]

約数ペア:

[(1, 80475320), (2, 40237660), (4, 20118830), (5, 16095064), (8, 10059415), (10, 8047532), (20, 4023766), (40, 2011883), (1321, 60920), (1523, 52840), (2642, 30460), (3046, 26420), (5284, 15230), (6092, 13210), (6605, 12184), (7615, 10568)]