28877440

素因数分解:

$2^7\times 5^1\times {\mathrm{45121}}^1$

素因数の和:45140

約数の個数: 32

約数和(自身を含む): 69036660

約数和(自身を除く): 40159220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 45121, 90242, 180484, 225605, 360968, 451210, 721936, 902420, 1443872, 1804840, 2887744, 3609680, 5775488, 7219360, 14438720, 28877440]

約数ペア:

[(1, 28877440), (2, 14438720), (4, 7219360), (5, 5775488), (8, 3609680), (10, 2887744), (16, 1804840), (20, 1443872), (32, 902420), (40, 721936), (64, 451210), (80, 360968), (128, 225605), (160, 180484), (320, 90242), (640, 45121)]