28152782

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 27004978

約数列:

[1, 2, 7, 14, 17, 23, 34, 37, 46, 74, 119, 139, 161, 238, 259, 278, 322, 391, 518, 629, 782, 851, 973, 1258, 1702, 1946, 2363, 2737, 3197, 4403, 4726, 5143, 5474, 5957, 6394, 8806, 10286, 11914, 14467, 16541, 22379, 28934, 33082, 36001, 44758, 54349, 72002, 87431, 101269, 108698, 118289, 174862, 202538, 236578, 380443, 612017, 760886, 828023, 1224034, 1656046, 2010913, 4021826, 14076391, 28152782]

約数ペア:

[(1, 28152782), (2, 14076391), (7, 4021826), (14, 2010913), (17, 1656046), (23, 1224034), (34, 828023), (37, 760886), (46, 612017), (74, 380443), (119, 236578), (139, 202538), (161, 174862), (238, 118289), (259, 108698), (278, 101269), (322, 87431), (391, 72002), (518, 54349), (629, 44758), (782, 36001), (851, 33082), (973, 28934), (1258, 22379), (1702, 16541), (1946, 14467), (2363, 11914), (2737, 10286), (3197, 8806), (4403, 6394), (4726, 5957), (5143, 5474)]