19236320

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1103}}^1$

素因数の和:1227

約数の個数: 48

約数和(自身を含む): 45904320

約数和(自身を除く): 26668000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1103, 1744, 2180, 2206, 3488, 4360, 4412, 5515, 8720, 8824, 11030, 17440, 17648, 22060, 35296, 44120, 88240, 120227, 176480, 240454, 480908, 601135, 961816, 1202270, 1923632, 2404540, 3847264, 4809080, 9618160, 19236320]

約数ペア:

[(1, 19236320), (2, 9618160), (4, 4809080), (5, 3847264), (8, 2404540), (10, 1923632), (16, 1202270), (20, 961816), (32, 601135), (40, 480908), (80, 240454), (109, 176480), (160, 120227), (218, 88240), (436, 44120), (545, 35296), (872, 22060), (1090, 17648), (1103, 17440), (1744, 11030), (2180, 8824), (2206, 8720), (3488, 5515), (4360, 4412)]