31229440

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1109}}^1$

素因数の和:1143

約数の個数: 80

約数和(自身を含む): 81758160

約数和(自身を除く): 50528720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1109, 1280, 1408, 1760, 2218, 2560, 2816, 3520, 4436, 5545, 5632, 7040, 8872, 11090, 12199, 14080, 17744, 22180, 24398, 28160, 35488, 44360, 48796, 60995, 70976, 88720, 97592, 121990, 141952, 177440, 195184, 243980, 283904, 354880, 390368, 487960, 567808, 709760, 780736, 975920, 1419520, 1561472, 1951840, 2839040, 3122944, 3903680, 6245888, 7807360, 15614720, 31229440]

約数ペア:

[(1, 31229440), (2, 15614720), (4, 7807360), (5, 6245888), (8, 3903680), (10, 3122944), (11, 2839040), (16, 1951840), (20, 1561472), (22, 1419520), (32, 975920), (40, 780736), (44, 709760), (55, 567808), (64, 487960), (80, 390368), (88, 354880), (110, 283904), (128, 243980), (160, 195184), (176, 177440), (220, 141952), (256, 121990), (320, 97592), (352, 88720), (440, 70976), (512, 60995), (640, 48796), (704, 44360), (880, 35488), (1109, 28160), (1280, 24398), (1408, 22180), (1760, 17744), (2218, 14080), (2560, 12199), (2816, 11090), (3520, 8872), (4436, 7040), (5545, 5632)]