18229760

素因数分解:

$2^9\times 5^1\times {\mathrm{7121}}^1$

素因数の和:7144

約数の個数: 40

約数和(自身を含む): 43714836

約数和(自身を除く): 25485076

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7121, 14242, 28484, 35605, 56968, 71210, 113936, 142420, 227872, 284840, 455744, 569680, 911488, 1139360, 1822976, 2278720, 3645952, 4557440, 9114880, 18229760]

約数ペア:

[(1, 18229760), (2, 9114880), (4, 4557440), (5, 3645952), (8, 2278720), (10, 1822976), (16, 1139360), (20, 911488), (32, 569680), (40, 455744), (64, 284840), (80, 227872), (128, 142420), (160, 113936), (256, 71210), (320, 56968), (512, 35605), (640, 28484), (1280, 14242), (2560, 7121)]