64445960

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 149083200

約数和(自身を除く): 84637240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 139, 173, 268, 278, 335, 346, 536, 556, 670, 692, 695, 865, 1112, 1340, 1384, 1390, 1730, 2680, 2780, 3460, 5560, 6920, 9313, 11591, 18626, 23182, 24047, 37252, 46364, 46565, 48094, 57955, 74504, 92728, 93130, 96188, 115910, 120235, 186260, 192376, 231820, 240470, 372520, 463640, 480940, 961880, 1611149, 3222298, 6444596, 8055745, 12889192, 16111490, 32222980, 64445960]

約数ペア:

[(1, 64445960), (2, 32222980), (4, 16111490), (5, 12889192), (8, 8055745), (10, 6444596), (20, 3222298), (40, 1611149), (67, 961880), (134, 480940), (139, 463640), (173, 372520), (268, 240470), (278, 231820), (335, 192376), (346, 186260), (536, 120235), (556, 115910), (670, 96188), (692, 93130), (695, 92728), (865, 74504), (1112, 57955), (1340, 48094), (1384, 46565), (1390, 46364), (1730, 37252), (2680, 24047), (2780, 23182), (3460, 18626), (5560, 11591), (6920, 9313)]