28543240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64871}}^1$

素因数の和:64893

約数の個数: 32

約数和(自身を含む): 70061760

約数和(自身を除く): 41518520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64871, 129742, 259484, 324355, 518968, 648710, 713581, 1297420, 1427162, 2594840, 2854324, 3567905, 5708648, 7135810, 14271620, 28543240]

約数ペア:

[(1, 28543240), (2, 14271620), (4, 7135810), (5, 5708648), (8, 3567905), (10, 2854324), (11, 2594840), (20, 1427162), (22, 1297420), (40, 713581), (44, 648710), (55, 518968), (88, 324355), (110, 259484), (220, 129742), (440, 64871)]