28418528

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1087}}^1$

素因数の和:1159

約数の個数: 48

約数和(自身を含む): 60318720

約数和(自身を除く): 31900192

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 76, 86, 152, 172, 304, 344, 608, 688, 817, 1087, 1376, 1634, 2174, 3268, 4348, 6536, 8696, 13072, 17392, 20653, 26144, 34784, 41306, 46741, 82612, 93482, 165224, 186964, 330448, 373928, 660896, 747856, 888079, 1495712, 1776158, 3552316, 7104632, 14209264, 28418528]

約数ペア:

[(1, 28418528), (2, 14209264), (4, 7104632), (8, 3552316), (16, 1776158), (19, 1495712), (32, 888079), (38, 747856), (43, 660896), (76, 373928), (86, 330448), (152, 186964), (172, 165224), (304, 93482), (344, 82612), (608, 46741), (688, 41306), (817, 34784), (1087, 26144), (1376, 20653), (1634, 17392), (2174, 13072), (3268, 8696), (4348, 6536)]