81170560

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2393}}^1$

素因数の和:2465

約数の個数: 64

約数和(自身を含む): 197792280

約数和(自身を除く): 116621720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 265, 320, 424, 530, 640, 848, 1060, 1696, 2120, 2393, 3392, 4240, 4786, 6784, 8480, 9572, 11965, 16960, 19144, 23930, 33920, 38288, 47860, 76576, 95720, 126829, 153152, 191440, 253658, 306304, 382880, 507316, 634145, 765760, 1014632, 1268290, 1531520, 2029264, 2536580, 4058528, 5073160, 8117056, 10146320, 16234112, 20292640, 40585280, 81170560]

約数ペア:

[(1, 81170560), (2, 40585280), (4, 20292640), (5, 16234112), (8, 10146320), (10, 8117056), (16, 5073160), (20, 4058528), (32, 2536580), (40, 2029264), (53, 1531520), (64, 1268290), (80, 1014632), (106, 765760), (128, 634145), (160, 507316), (212, 382880), (265, 306304), (320, 253658), (424, 191440), (530, 153152), (640, 126829), (848, 95720), (1060, 76576), (1696, 47860), (2120, 38288), (2393, 33920), (3392, 23930), (4240, 19144), (4786, 16960), (6784, 11965), (8480, 9572)]