81361920

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{5297}}^1$

素因数の和:5325

約数の個数: 88

約数和(自身を含む): 260280144

約数和(自身を除く): 178918224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1536, 1920, 2560, 3072, 3840, 5120, 5297, 7680, 10594, 15360, 15891, 21188, 26485, 31782, 42376, 52970, 63564, 79455, 84752, 105940, 127128, 158910, 169504, 211880, 254256, 317820, 339008, 423760, 508512, 635640, 678016, 847520, 1017024, 1271280, 1356032, 1695040, 2034048, 2542560, 2712064, 3390080, 4068096, 5085120, 5424128, 6780160, 8136192, 10170240, 13560320, 16272384, 20340480, 27120640, 40680960, 81361920]

約数ペア:

[(1, 81361920), (2, 40680960), (3, 27120640), (4, 20340480), (5, 16272384), (6, 13560320), (8, 10170240), (10, 8136192), (12, 6780160), (15, 5424128), (16, 5085120), (20, 4068096), (24, 3390080), (30, 2712064), (32, 2542560), (40, 2034048), (48, 1695040), (60, 1356032), (64, 1271280), (80, 1017024), (96, 847520), (120, 678016), (128, 635640), (160, 508512), (192, 423760), (240, 339008), (256, 317820), (320, 254256), (384, 211880), (480, 169504), (512, 158910), (640, 127128), (768, 105940), (960, 84752), (1024, 79455), (1280, 63564), (1536, 52970), (1920, 42376), (2560, 31782), (3072, 26485), (3840, 21188), (5120, 15891), (5297, 15360), (7680, 10594)]