28780491207

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{7949}}^1$

素因数の和:8152

約数の個数: 64

約数和(自身を含む): 45132595200

約数和(自身を除く): 16352103993

約数列:

[1, 3, 13, 17, 39, 43, 51, 127, 129, 221, 381, 559, 663, 731, 1651, 1677, 2159, 2193, 4953, 5461, 6477, 7949, 9503, 16383, 23847, 28067, 28509, 70993, 84201, 92837, 103337, 135133, 212979, 278511, 310011, 341807, 405399, 1009523, 1025421, 1206881, 1756729, 3028569, 3620643, 4443491, 5270187, 5810719, 13123799, 13330473, 17161891, 17432157, 39371397, 43409489, 51485673, 75539347, 130228467, 223104583, 226618041, 564323357, 669313749, 737961313, 1692970071, 2213883939, 9593497069, 28780491207]

約数ペア:

[(1, 28780491207), (3, 9593497069), (13, 2213883939), (17, 1692970071), (39, 737961313), (43, 669313749), (51, 564323357), (127, 226618041), (129, 223104583), (221, 130228467), (381, 75539347), (559, 51485673), (663, 43409489), (731, 39371397), (1651, 17432157), (1677, 17161891), (2159, 13330473), (2193, 13123799), (4953, 5810719), (5461, 5270187), (6477, 4443491), (7949, 3620643), (9503, 3028569), (16383, 1756729), (23847, 1206881), (28067, 1025421), (28509, 1009523), (70993, 405399), (84201, 341807), (92837, 310011), (103337, 278511), (135133, 212979)]