890491440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{23633}}^1$

素因数の和:23806

約数の個数: 80

約数和(自身を含む): 2778223968

約数和(自身を除く): 1887732528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 2512, 3140, 3768, 4710, 6280, 7536, 9420, 12560, 18840, 23633, 37680, 47266, 70899, 94532, 118165, 141798, 189064, 236330, 283596, 354495, 378128, 472660, 567192, 708990, 945320, 1134384, 1417980, 1890640, 2835960, 3710381, 5671920, 7420762, 11131143, 14841524, 18551905, 22262286, 29683048, 37103810, 44524572, 55655715, 59366096, 74207620, 89049144, 111311430, 148415240, 178098288, 222622860, 296830480, 445245720, 890491440]

約数ペア:

[(1, 890491440), (2, 445245720), (3, 296830480), (4, 222622860), (5, 178098288), (6, 148415240), (8, 111311430), (10, 89049144), (12, 74207620), (15, 59366096), (16, 55655715), (20, 44524572), (24, 37103810), (30, 29683048), (40, 22262286), (48, 18551905), (60, 14841524), (80, 11131143), (120, 7420762), (157, 5671920), (240, 3710381), (314, 2835960), (471, 1890640), (628, 1417980), (785, 1134384), (942, 945320), (1256, 708990), (1570, 567192), (1884, 472660), (2355, 378128), (2512, 354495), (3140, 283596), (3768, 236330), (4710, 189064), (6280, 141798), (7536, 118165), (9420, 94532), (12560, 70899), (18840, 47266), (23633, 37680)]