20105624

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 47554560

約数和(自身を除く): 27448936

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 127, 154, 254, 257, 308, 508, 514, 616, 889, 1016, 1028, 1397, 1778, 1799, 2056, 2794, 2827, 3556, 3598, 5588, 5654, 7112, 7196, 9779, 11176, 11308, 14392, 19558, 19789, 22616, 32639, 39116, 39578, 65278, 78232, 79156, 130556, 158312, 228473, 261112, 359029, 456946, 718058, 913892, 1436116, 1827784, 2513203, 2872232, 5026406, 10052812, 20105624]

約数ペア:

[(1, 20105624), (2, 10052812), (4, 5026406), (7, 2872232), (8, 2513203), (11, 1827784), (14, 1436116), (22, 913892), (28, 718058), (44, 456946), (56, 359029), (77, 261112), (88, 228473), (127, 158312), (154, 130556), (254, 79156), (257, 78232), (308, 65278), (508, 39578), (514, 39116), (616, 32639), (889, 22616), (1016, 19789), (1028, 19558), (1397, 14392), (1778, 11308), (1799, 11176), (2056, 9779), (2794, 7196), (2827, 7112), (3556, 5654), (3598, 5588)]