219639680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26399}}^1$

素因数の和:26431

約数の個数: 64

約数和(自身を含む): 565488000

約数和(自身を除く): 345848320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 26399, 52798, 105596, 131995, 211192, 263990, 343187, 422384, 527980, 686374, 844768, 1055960, 1372748, 1689536, 1715935, 2111920, 2745496, 3379072, 3431870, 4223840, 5490992, 6863740, 8447680, 10981984, 13727480, 16895360, 21963968, 27454960, 43927936, 54909920, 109819840, 219639680]

約数ペア:

[(1, 219639680), (2, 109819840), (4, 54909920), (5, 43927936), (8, 27454960), (10, 21963968), (13, 16895360), (16, 13727480), (20, 10981984), (26, 8447680), (32, 6863740), (40, 5490992), (52, 4223840), (64, 3431870), (65, 3379072), (80, 2745496), (104, 2111920), (128, 1715935), (130, 1689536), (160, 1372748), (208, 1055960), (260, 844768), (320, 686374), (416, 527980), (520, 422384), (640, 343187), (832, 263990), (1040, 211192), (1664, 131995), (2080, 105596), (4160, 52798), (8320, 26399)]