168000440

素因数分解:

$2^3\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{2591}}^1$

素因数の和:4223

約数の個数: 32

約数和(自身を含む): 378380160

約数和(自身を除く): 210379720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1621, 2591, 3242, 5182, 6484, 8105, 10364, 12955, 12968, 16210, 20728, 25910, 32420, 51820, 64840, 103640, 4200011, 8400022, 16800044, 21000055, 33600088, 42000110, 84000220, 168000440]

約数ペア:

[(1, 168000440), (2, 84000220), (4, 42000110), (5, 33600088), (8, 21000055), (10, 16800044), (20, 8400022), (40, 4200011), (1621, 103640), (2591, 64840), (3242, 51820), (5182, 32420), (6484, 25910), (8105, 20728), (10364, 16210), (12955, 12968)]