21701280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1559}}^1$

素因数の和:1606

約数の個数: 96

約数和(自身を含む): 70761600

約数和(自身を除く): 49060320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 80, 87, 96, 116, 120, 145, 160, 174, 232, 240, 290, 348, 435, 464, 480, 580, 696, 870, 928, 1160, 1392, 1559, 1740, 2320, 2784, 3118, 3480, 4640, 4677, 6236, 6960, 7795, 9354, 12472, 13920, 15590, 18708, 23385, 24944, 31180, 37416, 45211, 46770, 49888, 62360, 74832, 90422, 93540, 124720, 135633, 149664, 180844, 187080, 226055, 249440, 271266, 361688, 374160, 452110, 542532, 678165, 723376, 748320, 904220, 1085064, 1356330, 1446752, 1808440, 2170128, 2712660, 3616880, 4340256, 5425320, 7233760, 10850640, 21701280]

約数ペア:

[(1, 21701280), (2, 10850640), (3, 7233760), (4, 5425320), (5, 4340256), (6, 3616880), (8, 2712660), (10, 2170128), (12, 1808440), (15, 1446752), (16, 1356330), (20, 1085064), (24, 904220), (29, 748320), (30, 723376), (32, 678165), (40, 542532), (48, 452110), (58, 374160), (60, 361688), (80, 271266), (87, 249440), (96, 226055), (116, 187080), (120, 180844), (145, 149664), (160, 135633), (174, 124720), (232, 93540), (240, 90422), (290, 74832), (348, 62360), (435, 49888), (464, 46770), (480, 45211), (580, 37416), (696, 31180), (870, 24944), (928, 23385), (1160, 18708), (1392, 15590), (1559, 13920), (1740, 12472), (2320, 9354), (2784, 7795), (3118, 6960), (3480, 6236), (4640, 4677)]