256894080

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1997}}^1$

素因数の和:2086

約数の個数: 128

約数和(自身を含む): 831487680

約数和(自身を除く): 574593600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 80, 96, 120, 128, 134, 160, 192, 201, 240, 268, 320, 335, 384, 402, 480, 536, 640, 670, 804, 960, 1005, 1072, 1340, 1608, 1920, 1997, 2010, 2144, 2680, 3216, 3994, 4020, 4288, 5360, 5991, 6432, 7988, 8040, 8576, 9985, 10720, 11982, 12864, 15976, 16080, 19970, 21440, 23964, 25728, 29955, 31952, 32160, 39940, 42880, 47928, 59910, 63904, 64320, 79880, 95856, 119820, 127808, 128640, 133799, 159760, 191712, 239640, 255616, 267598, 319520, 383424, 401397, 479280, 535196, 639040, 668995, 766848, 802794, 958560, 1070392, 1278080, 1337990, 1605588, 1917120, 2006985, 2140784, 2675980, 3211176, 3834240, 4013970, 4281568, 5351960, 6422352, 8027940, 8563136, 10703920, 12844704, 16055880, 17126272, 21407840, 25689408, 32111760, 42815680, 51378816, 64223520, 85631360, 128447040, 256894080]

約数ペア:

[(1, 256894080), (2, 128447040), (3, 85631360), (4, 64223520), (5, 51378816), (6, 42815680), (8, 32111760), (10, 25689408), (12, 21407840), (15, 17126272), (16, 16055880), (20, 12844704), (24, 10703920), (30, 8563136), (32, 8027940), (40, 6422352), (48, 5351960), (60, 4281568), (64, 4013970), (67, 3834240), (80, 3211176), (96, 2675980), (120, 2140784), (128, 2006985), (134, 1917120), (160, 1605588), (192, 1337990), (201, 1278080), (240, 1070392), (268, 958560), (320, 802794), (335, 766848), (384, 668995), (402, 639040), (480, 535196), (536, 479280), (640, 401397), (670, 383424), (804, 319520), (960, 267598), (1005, 255616), (1072, 239640), (1340, 191712), (1608, 159760), (1920, 133799), (1997, 128640), (2010, 127808), (2144, 119820), (2680, 95856), (3216, 79880), (3994, 64320), (4020, 63904), (4288, 59910), (5360, 47928), (5991, 42880), (6432, 39940), (7988, 32160), (8040, 31952), (8576, 29955), (9985, 25728), (10720, 23964), (11982, 21440), (12864, 19970), (15976, 16080)]