128728320

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{4789}}^1$

素因数の和:4820

約数の個数: 144

約数和(自身を含む): 469956480

約数和(自身を除く): 341228160

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, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 4789, 5376, 6720, 8960, 9578, 13440, 14367, 19156, 23945, 26880, 28734, 33523, 38312, 47890, 57468, 67046, 71835, 76624, 95780, 100569, 114936, 134092, 143670, 153248, 167615, 191560, 201138, 229872, 268184, 287340, 306496, 335230, 383120, 402276, 459744, 502845, 536368, 574680, 612992, 670460, 766240, 804552, 919488, 1005690, 1072736, 1149360, 1225984, 1340920, 1532480, 1609104, 1838976, 2011380, 2145472, 2298720, 2681840, 3064960, 3218208, 3677952, 4022760, 4290944, 4597440, 5363680, 6129920, 6436416, 8045520, 8581888, 9194880, 10727360, 12872832, 16091040, 18389760, 21454720, 25745664, 32182080, 42909440, 64364160, 128728320]

約数ペア:

[(1, 128728320), (2, 64364160), (3, 42909440), (4, 32182080), (5, 25745664), (6, 21454720), (7, 18389760), (8, 16091040), (10, 12872832), (12, 10727360), (14, 9194880), (15, 8581888), (16, 8045520), (20, 6436416), (21, 6129920), (24, 5363680), (28, 4597440), (30, 4290944), (32, 4022760), (35, 3677952), (40, 3218208), (42, 3064960), (48, 2681840), (56, 2298720), (60, 2145472), (64, 2011380), (70, 1838976), (80, 1609104), (84, 1532480), (96, 1340920), (105, 1225984), (112, 1149360), (120, 1072736), (128, 1005690), (140, 919488), (160, 804552), (168, 766240), (192, 670460), (210, 612992), (224, 574680), (240, 536368), (256, 502845), (280, 459744), (320, 402276), (336, 383120), (384, 335230), (420, 306496), (448, 287340), (480, 268184), (560, 229872), (640, 201138), (672, 191560), (768, 167615), (840, 153248), (896, 143670), (960, 134092), (1120, 114936), (1280, 100569), (1344, 95780), (1680, 76624), (1792, 71835), (1920, 67046), (2240, 57468), (2688, 47890), (3360, 38312), (3840, 33523), (4480, 28734), (4789, 26880), (5376, 23945), (6720, 19156), (8960, 14367), (9578, 13440)]