64900840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{55949}}^1$

素因数の和:55989

約数の個数: 32

約数和(自身を含む): 151065000

約数和(自身を除く): 86164160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 55949, 111898, 223796, 279745, 447592, 559490, 1118980, 1622521, 2237960, 3245042, 6490084, 8112605, 12980168, 16225210, 32450420, 64900840]

約数ペア:

[(1, 64900840), (2, 32450420), (4, 16225210), (5, 12980168), (8, 8112605), (10, 6490084), (20, 3245042), (29, 2237960), (40, 1622521), (58, 1118980), (116, 559490), (145, 447592), (232, 279745), (290, 223796), (580, 111898), (1160, 55949)]