20357512

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^3\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 46915200

約数和(自身を除く): 26557688

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 53, 56, 76, 106, 133, 152, 212, 266, 361, 371, 424, 532, 722, 742, 1007, 1064, 1444, 1484, 2014, 2527, 2888, 2968, 4028, 5054, 6859, 7049, 8056, 10108, 13718, 14098, 19133, 20216, 27436, 28196, 38266, 48013, 54872, 56392, 76532, 96026, 133931, 153064, 192052, 267862, 363527, 384104, 535724, 727054, 1071448, 1454108, 2544689, 2908216, 5089378, 10178756, 20357512]

約数ペア:

[(1, 20357512), (2, 10178756), (4, 5089378), (7, 2908216), (8, 2544689), (14, 1454108), (19, 1071448), (28, 727054), (38, 535724), (53, 384104), (56, 363527), (76, 267862), (106, 192052), (133, 153064), (152, 133931), (212, 96026), (266, 76532), (361, 56392), (371, 54872), (424, 48013), (532, 38266), (722, 28196), (742, 27436), (1007, 20216), (1064, 19133), (1444, 14098), (1484, 13718), (2014, 10108), (2527, 8056), (2888, 7049), (2968, 6859), (4028, 5054)]