20730752

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1361}}^1$

素因数の和:1399

約数の個数: 64

約数和(自身を含む): 50012640

約数和(自身を除く): 29281888

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1361, 1904, 2176, 2722, 3808, 5444, 7616, 9527, 10888, 15232, 19054, 21776, 23137, 38108, 43552, 46274, 76216, 87104, 92548, 152432, 161959, 174208, 185096, 304864, 323918, 370192, 609728, 647836, 740384, 1219456, 1295672, 1480768, 2591344, 2961536, 5182688, 10365376, 20730752]

約数ペア:

[(1, 20730752), (2, 10365376), (4, 5182688), (7, 2961536), (8, 2591344), (14, 1480768), (16, 1295672), (17, 1219456), (28, 740384), (32, 647836), (34, 609728), (56, 370192), (64, 323918), (68, 304864), (112, 185096), (119, 174208), (128, 161959), (136, 152432), (224, 92548), (238, 87104), (272, 76216), (448, 46274), (476, 43552), (544, 38108), (896, 23137), (952, 21776), (1088, 19054), (1361, 15232), (1904, 10888), (2176, 9527), (2722, 7616), (3808, 5444)]