61489708

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 131606160

約数和(自身を除く): 70116452

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 61, 74, 98, 122, 139, 148, 196, 244, 259, 278, 427, 518, 556, 854, 973, 1036, 1708, 1813, 1946, 2257, 2989, 3626, 3892, 4514, 5143, 5978, 6811, 7252, 8479, 9028, 10286, 11956, 13622, 15799, 16958, 20572, 27244, 31598, 33916, 36001, 59353, 63196, 72002, 110593, 118706, 144004, 221186, 237412, 252007, 313723, 415471, 442372, 504014, 627446, 830942, 1008028, 1254892, 1661884, 2196061, 4392122, 8784244, 15372427, 30744854, 61489708]

約数ペア:

[(1, 61489708), (2, 30744854), (4, 15372427), (7, 8784244), (14, 4392122), (28, 2196061), (37, 1661884), (49, 1254892), (61, 1008028), (74, 830942), (98, 627446), (122, 504014), (139, 442372), (148, 415471), (196, 313723), (244, 252007), (259, 237412), (278, 221186), (427, 144004), (518, 118706), (556, 110593), (854, 72002), (973, 63196), (1036, 59353), (1708, 36001), (1813, 33916), (1946, 31598), (2257, 27244), (2989, 20572), (3626, 16958), (3892, 15799), (4514, 13622), (5143, 11956), (5978, 10286), (6811, 9028), (7252, 8479)]