72907520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 204072960

約数和(自身を除く): 131165440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 103, 112, 128, 140, 158, 160, 206, 224, 256, 280, 316, 320, 395, 412, 448, 515, 553, 560, 632, 640, 721, 790, 824, 896, 1030, 1106, 1120, 1264, 1280, 1442, 1580, 1648, 1792, 2060, 2212, 2240, 2528, 2765, 2884, 3160, 3296, 3605, 4120, 4424, 4480, 5056, 5530, 5768, 6320, 6592, 7210, 8137, 8240, 8848, 8960, 10112, 11060, 11536, 12640, 13184, 14420, 16274, 16480, 17696, 20224, 22120, 23072, 25280, 26368, 28840, 32548, 32960, 35392, 40685, 44240, 46144, 50560, 56959, 57680, 65096, 65920, 70784, 81370, 88480, 92288, 101120, 113918, 115360, 130192, 131840, 141568, 162740, 176960, 184576, 227836, 230720, 260384, 284795, 325480, 353920, 455672, 461440, 520768, 569590, 650960, 707840, 911344, 922880, 1041536, 1139180, 1301920, 1822688, 2083072, 2278360, 2603840, 3645376, 4556720, 5207680, 7290752, 9113440, 10415360, 14581504, 18226880, 36453760, 72907520]

約数ペア:

[(1, 72907520), (2, 36453760), (4, 18226880), (5, 14581504), (7, 10415360), (8, 9113440), (10, 7290752), (14, 5207680), (16, 4556720), (20, 3645376), (28, 2603840), (32, 2278360), (35, 2083072), (40, 1822688), (56, 1301920), (64, 1139180), (70, 1041536), (79, 922880), (80, 911344), (103, 707840), (112, 650960), (128, 569590), (140, 520768), (158, 461440), (160, 455672), (206, 353920), (224, 325480), (256, 284795), (280, 260384), (316, 230720), (320, 227836), (395, 184576), (412, 176960), (448, 162740), (515, 141568), (553, 131840), (560, 130192), (632, 115360), (640, 113918), (721, 101120), (790, 92288), (824, 88480), (896, 81370), (1030, 70784), (1106, 65920), (1120, 65096), (1264, 57680), (1280, 56959), (1442, 50560), (1580, 46144), (1648, 44240), (1792, 40685), (2060, 35392), (2212, 32960), (2240, 32548), (2528, 28840), (2765, 26368), (2884, 25280), (3160, 23072), (3296, 22120), (3605, 20224), (4120, 17696), (4424, 16480), (4480, 16274), (5056, 14420), (5530, 13184), (5768, 12640), (6320, 11536), (6592, 11060), (7210, 10112), (8137, 8960), (8240, 8848)]