20561472

素因数分解:

$2^6\times 3^3\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 112

約数和(自身を含む): 61650880

約数和(自身を除く): 41089408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 73, 96, 108, 144, 146, 163, 192, 216, 219, 288, 292, 326, 432, 438, 489, 576, 584, 652, 657, 864, 876, 978, 1168, 1304, 1314, 1467, 1728, 1752, 1956, 1971, 2336, 2608, 2628, 2934, 3504, 3912, 3942, 4401, 4672, 5216, 5256, 5868, 7008, 7824, 7884, 8802, 10432, 10512, 11736, 11899, 14016, 15648, 15768, 17604, 21024, 23472, 23798, 31296, 31536, 35208, 35697, 42048, 46944, 47596, 63072, 70416, 71394, 93888, 95192, 107091, 126144, 140832, 142788, 190384, 214182, 281664, 285576, 321273, 380768, 428364, 571152, 642546, 761536, 856728, 1142304, 1285092, 1713456, 2284608, 2570184, 3426912, 5140368, 6853824, 10280736, 20561472]

約数ペア:

[(1, 20561472), (2, 10280736), (3, 6853824), (4, 5140368), (6, 3426912), (8, 2570184), (9, 2284608), (12, 1713456), (16, 1285092), (18, 1142304), (24, 856728), (27, 761536), (32, 642546), (36, 571152), (48, 428364), (54, 380768), (64, 321273), (72, 285576), (73, 281664), (96, 214182), (108, 190384), (144, 142788), (146, 140832), (163, 126144), (192, 107091), (216, 95192), (219, 93888), (288, 71394), (292, 70416), (326, 63072), (432, 47596), (438, 46944), (489, 42048), (576, 35697), (584, 35208), (652, 31536), (657, 31296), (864, 23798), (876, 23472), (978, 21024), (1168, 17604), (1304, 15768), (1314, 15648), (1467, 14016), (1728, 11899), (1752, 11736), (1956, 10512), (1971, 10432), (2336, 8802), (2608, 7884), (2628, 7824), (2934, 7008), (3504, 5868), (3912, 5256), (3942, 5216), (4401, 4672)]