31357440

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{1361}}^1$

素因数の和:1390

約数の個数: 120

約数和(自身を含む): 108679428

約数和(自身を除く): 77321988

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1361, 1440, 1536, 1920, 2304, 2560, 2722, 2880, 3840, 4083, 4608, 5444, 5760, 6805, 7680, 8166, 10888, 11520, 12249, 13610, 16332, 20415, 21776, 23040, 24498, 27220, 32664, 40830, 43552, 48996, 54440, 61245, 65328, 81660, 87104, 97992, 108880, 122490, 130656, 163320, 174208, 195984, 217760, 244980, 261312, 326640, 348416, 391968, 435520, 489960, 522624, 653280, 696832, 783936, 871040, 979920, 1045248, 1306560, 1567872, 1742080, 1959840, 2090496, 2613120, 3135744, 3484160, 3919680, 5226240, 6271488, 7839360, 10452480, 15678720, 31357440]

約数ペア:

[(1, 31357440), (2, 15678720), (3, 10452480), (4, 7839360), (5, 6271488), (6, 5226240), (8, 3919680), (9, 3484160), (10, 3135744), (12, 2613120), (15, 2090496), (16, 1959840), (18, 1742080), (20, 1567872), (24, 1306560), (30, 1045248), (32, 979920), (36, 871040), (40, 783936), (45, 696832), (48, 653280), (60, 522624), (64, 489960), (72, 435520), (80, 391968), (90, 348416), (96, 326640), (120, 261312), (128, 244980), (144, 217760), (160, 195984), (180, 174208), (192, 163320), (240, 130656), (256, 122490), (288, 108880), (320, 97992), (360, 87104), (384, 81660), (480, 65328), (512, 61245), (576, 54440), (640, 48996), (720, 43552), (768, 40830), (960, 32664), (1152, 27220), (1280, 24498), (1361, 23040), (1440, 21776), (1536, 20415), (1920, 16332), (2304, 13610), (2560, 12249), (2722, 11520), (2880, 10888), (3840, 8166), (4083, 7680), (4608, 6805), (5444, 5760)]