989345656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{521}}^1$

素因数の和:621

約数の個数: 96

約数和(自身を含む): 2177053200

約数和(自身を除く): 1187707544

約数列:

[1, 2, 4, 8, 13, 19, 26, 31, 38, 52, 62, 76, 104, 124, 152, 247, 248, 403, 494, 521, 589, 806, 961, 988, 1042, 1178, 1612, 1922, 1976, 2084, 2356, 3224, 3844, 4168, 4712, 6773, 7657, 7688, 9899, 12493, 13546, 15314, 16151, 18259, 19798, 24986, 27092, 30628, 32302, 36518, 39596, 49972, 54184, 61256, 64604, 73036, 79192, 99944, 128687, 129208, 146072, 209963, 237367, 257374, 306869, 419926, 474734, 500681, 514748, 613738, 839852, 949468, 1001362, 1029496, 1227476, 1679704, 1898936, 2002724, 2454952, 3989297, 4005448, 6508853, 7978594, 9512939, 13017706, 15957188, 19025878, 26035412, 31914376, 38051756, 52070824, 76103512, 123668207, 247336414, 494672828, 989345656]

約数ペア:

[(1, 989345656), (2, 494672828), (4, 247336414), (8, 123668207), (13, 76103512), (19, 52070824), (26, 38051756), (31, 31914376), (38, 26035412), (52, 19025878), (62, 15957188), (76, 13017706), (104, 9512939), (124, 7978594), (152, 6508853), (247, 4005448), (248, 3989297), (403, 2454952), (494, 2002724), (521, 1898936), (589, 1679704), (806, 1227476), (961, 1029496), (988, 1001362), (1042, 949468), (1178, 839852), (1612, 613738), (1922, 514748), (1976, 500681), (2084, 474734), (2356, 419926), (3224, 306869), (3844, 257374), (4168, 237367), (4712, 209963), (6773, 146072), (7657, 129208), (7688, 128687), (9899, 99944), (12493, 79192), (13546, 73036), (15314, 64604), (16151, 61256), (18259, 54184), (19798, 49972), (24986, 39596), (27092, 36518), (30628, 32302)]