81271680

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{6047}}^1$

素因数の和:6076

約数の個数: 128

約数和(自身を含む): 296110080

約数和(自身を除く): 214838400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6047, 6720, 12094, 13440, 18141, 24188, 30235, 36282, 42329, 48376, 60470, 72564, 84658, 90705, 96752, 120940, 126987, 145128, 169316, 181410, 193504, 211645, 241880, 253974, 290256, 338632, 362820, 387008, 423290, 483760, 507948, 580512, 634935, 677264, 725640, 774016, 846580, 967520, 1015896, 1161024, 1269870, 1354528, 1451280, 1693160, 1935040, 2031792, 2322048, 2539740, 2709056, 2902560, 3386320, 3870080, 4063584, 5079480, 5418112, 5805120, 6772640, 8127168, 10158960, 11610240, 13545280, 16254336, 20317920, 27090560, 40635840, 81271680]

約数ペア:

[(1, 81271680), (2, 40635840), (3, 27090560), (4, 20317920), (5, 16254336), (6, 13545280), (7, 11610240), (8, 10158960), (10, 8127168), (12, 6772640), (14, 5805120), (15, 5418112), (16, 5079480), (20, 4063584), (21, 3870080), (24, 3386320), (28, 2902560), (30, 2709056), (32, 2539740), (35, 2322048), (40, 2031792), (42, 1935040), (48, 1693160), (56, 1451280), (60, 1354528), (64, 1269870), (70, 1161024), (80, 1015896), (84, 967520), (96, 846580), (105, 774016), (112, 725640), (120, 677264), (128, 634935), (140, 580512), (160, 507948), (168, 483760), (192, 423290), (210, 387008), (224, 362820), (240, 338632), (280, 290256), (320, 253974), (336, 241880), (384, 211645), (420, 193504), (448, 181410), (480, 169316), (560, 145128), (640, 126987), (672, 120940), (840, 96752), (896, 90705), (960, 84658), (1120, 72564), (1344, 60470), (1680, 48376), (1920, 42329), (2240, 36282), (2688, 30235), (3360, 24188), (4480, 18141), (6047, 13440), (6720, 12094)]