1245765320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{2803}}^1$

素因数の和:3126

約数の個数: 64

約数和(自身を含む): 2882960640

約数和(自身を除く): 1637195320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 271, 328, 410, 542, 820, 1084, 1355, 1640, 2168, 2710, 2803, 5420, 5606, 10840, 11111, 11212, 14015, 22222, 22424, 28030, 44444, 55555, 56060, 88888, 111110, 112120, 114923, 222220, 229846, 444440, 459692, 574615, 759613, 919384, 1149230, 1519226, 2298460, 3038452, 3798065, 4596920, 6076904, 7596130, 15192260, 30384520, 31144133, 62288266, 124576532, 155720665, 249153064, 311441330, 622882660, 1245765320]

約数ペア:

[(1, 1245765320), (2, 622882660), (4, 311441330), (5, 249153064), (8, 155720665), (10, 124576532), (20, 62288266), (40, 31144133), (41, 30384520), (82, 15192260), (164, 7596130), (205, 6076904), (271, 4596920), (328, 3798065), (410, 3038452), (542, 2298460), (820, 1519226), (1084, 1149230), (1355, 919384), (1640, 759613), (2168, 574615), (2710, 459692), (2803, 444440), (5420, 229846), (5606, 222220), (10840, 114923), (11111, 112120), (11212, 111110), (14015, 88888), (22222, 56060), (22424, 55555), (28030, 44444)]