215678512

素因数分解:

$2^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:458

約数の個数: 80

約数和(自身を含む): 491397120

約数和(自身を除く): 275718608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 59, 112, 118, 127, 236, 254, 257, 413, 472, 508, 514, 826, 889, 944, 1016, 1028, 1652, 1778, 1799, 2032, 2056, 3304, 3556, 3598, 4112, 6608, 7112, 7196, 7493, 14224, 14392, 14986, 15163, 28784, 29972, 30326, 32639, 52451, 59944, 60652, 65278, 104902, 106141, 119888, 121304, 130556, 209804, 212282, 228473, 242608, 261112, 419608, 424564, 456946, 522224, 839216, 849128, 913892, 1698256, 1827784, 1925701, 3655568, 3851402, 7702804, 13479907, 15405608, 26959814, 30811216, 53919628, 107839256, 215678512]

約数ペア:

[(1, 215678512), (2, 107839256), (4, 53919628), (7, 30811216), (8, 26959814), (14, 15405608), (16, 13479907), (28, 7702804), (56, 3851402), (59, 3655568), (112, 1925701), (118, 1827784), (127, 1698256), (236, 913892), (254, 849128), (257, 839216), (413, 522224), (472, 456946), (508, 424564), (514, 419608), (826, 261112), (889, 242608), (944, 228473), (1016, 212282), (1028, 209804), (1652, 130556), (1778, 121304), (1799, 119888), (2032, 106141), (2056, 104902), (3304, 65278), (3556, 60652), (3598, 59944), (4112, 52451), (6608, 32639), (7112, 30326), (7196, 29972), (7493, 28784), (14224, 15163), (14392, 14986)]