18834280

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{983}}^1$

素因数の和:1473

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 23674520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 983, 1916, 1966, 2395, 3832, 3932, 4790, 4915, 7864, 9580, 9830, 19160, 19660, 39320, 470857, 941714, 1883428, 2354285, 3766856, 4708570, 9417140, 18834280]

約数ペア:

[(1, 18834280), (2, 9417140), (4, 4708570), (5, 3766856), (8, 2354285), (10, 1883428), (20, 941714), (40, 470857), (479, 39320), (958, 19660), (983, 19160), (1916, 9830), (1966, 9580), (2395, 7864), (3832, 4915), (3932, 4790)]