438638720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52721}}^1$

素因数の和:52753

約数の個数: 64

約数和(自身を含む): 1129305240

約数和(自身を除く): 690666520

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, 52721, 105442, 210884, 263605, 421768, 527210, 685373, 843536, 1054420, 1370746, 1687072, 2108840, 2741492, 3374144, 3426865, 4217680, 5482984, 6748288, 6853730, 8435360, 10965968, 13707460, 16870720, 21931936, 27414920, 33741440, 43863872, 54829840, 87727744, 109659680, 219319360, 438638720]

約数ペア:

[(1, 438638720), (2, 219319360), (4, 109659680), (5, 87727744), (8, 54829840), (10, 43863872), (13, 33741440), (16, 27414920), (20, 21931936), (26, 16870720), (32, 13707460), (40, 10965968), (52, 8435360), (64, 6853730), (65, 6748288), (80, 5482984), (104, 4217680), (128, 3426865), (130, 3374144), (160, 2741492), (208, 2108840), (260, 1687072), (320, 1370746), (416, 1054420), (520, 843536), (640, 685373), (832, 527210), (1040, 421768), (1664, 263605), (2080, 210884), (4160, 105442), (8320, 52721)]