18477440

素因数分解:

$2^7\times 5^1\times {\mathrm{28871}}^1$

素因数の和:28890

約数の個数: 32

約数和(自身を含む): 44174160

約数和(自身を除く): 25696720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28871, 57742, 115484, 144355, 230968, 288710, 461936, 577420, 923872, 1154840, 1847744, 2309680, 3695488, 4619360, 9238720, 18477440]

約数ペア:

[(1, 18477440), (2, 9238720), (4, 4619360), (5, 3695488), (8, 2309680), (10, 1847744), (16, 1154840), (20, 923872), (32, 577420), (40, 461936), (64, 288710), (80, 230968), (128, 144355), (160, 115484), (320, 57742), (640, 28871)]