28130508

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:492

約数の個数: 108

約数和(自身を含む): 85149792

約数和(自身を除く): 57019284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 49, 63, 74, 84, 98, 111, 126, 147, 148, 196, 222, 252, 259, 294, 333, 431, 441, 444, 518, 588, 666, 777, 862, 882, 1036, 1293, 1332, 1554, 1724, 1764, 1813, 2331, 2586, 3017, 3108, 3626, 3879, 4662, 5172, 5439, 6034, 7252, 7758, 9051, 9324, 10878, 12068, 15516, 15947, 16317, 18102, 21119, 21756, 27153, 31894, 32634, 36204, 42238, 47841, 54306, 63357, 63788, 65268, 84476, 95682, 108612, 111629, 126714, 143523, 190071, 191364, 223258, 253428, 287046, 334887, 380142, 446516, 574092, 669774, 760284, 781403, 1004661, 1339548, 1562806, 2009322, 2344209, 3125612, 4018644, 4688418, 7032627, 9376836, 14065254, 28130508]

約数ペア:

[(1, 28130508), (2, 14065254), (3, 9376836), (4, 7032627), (6, 4688418), (7, 4018644), (9, 3125612), (12, 2344209), (14, 2009322), (18, 1562806), (21, 1339548), (28, 1004661), (36, 781403), (37, 760284), (42, 669774), (49, 574092), (63, 446516), (74, 380142), (84, 334887), (98, 287046), (111, 253428), (126, 223258), (147, 191364), (148, 190071), (196, 143523), (222, 126714), (252, 111629), (259, 108612), (294, 95682), (333, 84476), (431, 65268), (441, 63788), (444, 63357), (518, 54306), (588, 47841), (666, 42238), (777, 36204), (862, 32634), (882, 31894), (1036, 27153), (1293, 21756), (1332, 21119), (1554, 18102), (1724, 16317), (1764, 15947), (1813, 15516), (2331, 12068), (2586, 10878), (3017, 9324), (3108, 9051), (3626, 7758), (3879, 7252), (4662, 6034), (5172, 5439)]