20492752

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:308

約数の個数: 80

約数和(自身を含む): 49282560

約数和(自身を除く): 28789808

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 47, 56, 68, 94, 112, 119, 136, 188, 229, 238, 272, 329, 376, 458, 476, 658, 752, 799, 916, 952, 1316, 1598, 1603, 1832, 1904, 2632, 3196, 3206, 3664, 3893, 5264, 5593, 6392, 6412, 7786, 10763, 11186, 12784, 12824, 15572, 21526, 22372, 25648, 27251, 31144, 43052, 44744, 54502, 62288, 75341, 86104, 89488, 109004, 150682, 172208, 182971, 218008, 301364, 365942, 436016, 602728, 731884, 1205456, 1280797, 1463768, 2561594, 2927536, 5123188, 10246376, 20492752]

約数ペア:

[(1, 20492752), (2, 10246376), (4, 5123188), (7, 2927536), (8, 2561594), (14, 1463768), (16, 1280797), (17, 1205456), (28, 731884), (34, 602728), (47, 436016), (56, 365942), (68, 301364), (94, 218008), (112, 182971), (119, 172208), (136, 150682), (188, 109004), (229, 89488), (238, 86104), (272, 75341), (329, 62288), (376, 54502), (458, 44744), (476, 43052), (658, 31144), (752, 27251), (799, 25648), (916, 22372), (952, 21526), (1316, 15572), (1598, 12824), (1603, 12784), (1832, 11186), (1904, 10763), (2632, 7786), (3196, 6412), (3206, 6392), (3664, 5593), (3893, 5264)]