20968560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29123}}^1$

素因数の和:29142

約数の個数: 60

約数和(自身を含む): 70421832

約数和(自身を除く): 49453272

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29123, 58246, 87369, 116492, 145615, 174738, 232984, 262107, 291230, 349476, 436845, 465968, 524214, 582460, 698952, 873690, 1048428, 1164920, 1310535, 1397904, 1747380, 2096856, 2329840, 2621070, 3494760, 4193712, 5242140, 6989520, 10484280, 20968560]

約数ペア:

[(1, 20968560), (2, 10484280), (3, 6989520), (4, 5242140), (5, 4193712), (6, 3494760), (8, 2621070), (9, 2329840), (10, 2096856), (12, 1747380), (15, 1397904), (16, 1310535), (18, 1164920), (20, 1048428), (24, 873690), (30, 698952), (36, 582460), (40, 524214), (45, 465968), (48, 436845), (60, 349476), (72, 291230), (80, 262107), (90, 232984), (120, 174738), (144, 145615), (180, 116492), (240, 87369), (360, 58246), (720, 29123)]