78081920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:656

約数の個数: 128

約数和(自身を含む): 221054400

約数和(自身を除く): 142972480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 160, 203, 224, 232, 280, 290, 320, 406, 448, 464, 560, 580, 601, 640, 812, 896, 928, 1015, 1120, 1160, 1202, 1624, 1856, 2030, 2240, 2320, 2404, 3005, 3248, 3712, 4060, 4207, 4480, 4640, 4808, 6010, 6496, 8120, 8414, 9280, 9616, 12020, 12992, 16240, 16828, 17429, 18560, 19232, 21035, 24040, 25984, 32480, 33656, 34858, 38464, 42070, 48080, 64960, 67312, 69716, 76928, 84140, 87145, 96160, 122003, 129920, 134624, 139432, 168280, 174290, 192320, 244006, 269248, 278864, 336560, 348580, 384640, 488012, 538496, 557728, 610015, 673120, 697160, 976024, 1115456, 1220030, 1346240, 1394320, 1952048, 2230912, 2440060, 2692480, 2788640, 3904096, 4880120, 5577280, 7808192, 9760240, 11154560, 15616384, 19520480, 39040960, 78081920]

約数ペア:

[(1, 78081920), (2, 39040960), (4, 19520480), (5, 15616384), (7, 11154560), (8, 9760240), (10, 7808192), (14, 5577280), (16, 4880120), (20, 3904096), (28, 2788640), (29, 2692480), (32, 2440060), (35, 2230912), (40, 1952048), (56, 1394320), (58, 1346240), (64, 1220030), (70, 1115456), (80, 976024), (112, 697160), (116, 673120), (128, 610015), (140, 557728), (145, 538496), (160, 488012), (203, 384640), (224, 348580), (232, 336560), (280, 278864), (290, 269248), (320, 244006), (406, 192320), (448, 174290), (464, 168280), (560, 139432), (580, 134624), (601, 129920), (640, 122003), (812, 96160), (896, 87145), (928, 84140), (1015, 76928), (1120, 69716), (1160, 67312), (1202, 64960), (1624, 48080), (1856, 42070), (2030, 38464), (2240, 34858), (2320, 33656), (2404, 32480), (3005, 25984), (3248, 24040), (3712, 21035), (4060, 19232), (4207, 18560), (4480, 17429), (4640, 16828), (4808, 16240), (6010, 12992), (6496, 12020), (8120, 9616), (8414, 9280)]