19197440

素因数分解:

$2^9\times 5^1\times {\mathrm{7499}}^1$

素因数の和:7522

約数の個数: 40

約数和(自身を含む): 46035000

約数和(自身を除く): 26837560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7499, 14998, 29996, 37495, 59992, 74990, 119984, 149980, 239968, 299960, 479936, 599920, 959872, 1199840, 1919744, 2399680, 3839488, 4799360, 9598720, 19197440]

約数ペア:

[(1, 19197440), (2, 9598720), (4, 4799360), (5, 3839488), (8, 2399680), (10, 1919744), (16, 1199840), (20, 959872), (32, 599920), (40, 479936), (64, 299960), (80, 239968), (128, 149980), (160, 119984), (256, 74990), (320, 59992), (512, 37495), (640, 29996), (1280, 14998), (2560, 7499)]