260513656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{313}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 541235520

約数和(自身を除く): 280721864

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 151, 212, 302, 313, 424, 604, 626, 689, 1208, 1252, 1378, 1963, 2504, 2756, 3926, 4069, 5512, 7852, 8003, 8138, 15704, 16006, 16276, 16589, 32012, 32552, 33178, 47263, 64024, 66356, 94526, 104039, 132712, 189052, 208078, 215657, 378104, 416156, 431314, 614419, 832312, 862628, 1228838, 1725256, 2457676, 2504939, 4915352, 5009878, 10019756, 20039512, 32564207, 65128414, 130256828, 260513656]

約数ペア:

[(1, 260513656), (2, 130256828), (4, 65128414), (8, 32564207), (13, 20039512), (26, 10019756), (52, 5009878), (53, 4915352), (104, 2504939), (106, 2457676), (151, 1725256), (212, 1228838), (302, 862628), (313, 832312), (424, 614419), (604, 431314), (626, 416156), (689, 378104), (1208, 215657), (1252, 208078), (1378, 189052), (1963, 132712), (2504, 104039), (2756, 94526), (3926, 66356), (4069, 64024), (5512, 47263), (7852, 33178), (8003, 32552), (8138, 32012), (15704, 16589), (16006, 16276)]