20001352

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 25721528

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 53, 56, 92, 106, 161, 184, 212, 293, 322, 371, 424, 586, 644, 742, 1172, 1219, 1288, 1484, 2051, 2344, 2438, 2968, 4102, 4876, 6739, 8204, 8533, 9752, 13478, 15529, 16408, 17066, 26956, 31058, 34132, 47173, 53912, 62116, 68264, 94346, 108703, 124232, 188692, 217406, 357167, 377384, 434812, 714334, 869624, 1428668, 2500169, 2857336, 5000338, 10000676, 20001352]

約数ペア:

[(1, 20001352), (2, 10000676), (4, 5000338), (7, 2857336), (8, 2500169), (14, 1428668), (23, 869624), (28, 714334), (46, 434812), (53, 377384), (56, 357167), (92, 217406), (106, 188692), (161, 124232), (184, 108703), (212, 94346), (293, 68264), (322, 62116), (371, 53912), (424, 47173), (586, 34132), (644, 31058), (742, 26956), (1172, 17066), (1219, 16408), (1288, 15529), (1484, 13478), (2051, 9752), (2344, 8533), (2438, 8204), (2968, 6739), (4102, 4876)]