4557440

素因数分解:

$2^7\times 5^1\times {\mathrm{7121}}^1$

素因数の和:7140

約数の個数: 32

約数和(自身を含む): 10896660

約数和(自身を除く): 6339220

約数列:

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

約数ペア:

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