1999334584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:453

約数の個数: 128

約数和(自身を含む): 4438425600

約数和(自身を除く): 2439091016

約数列:

[1, 2, 4, 8, 13, 19, 26, 31, 38, 52, 62, 76, 104, 124, 127, 152, 247, 248, 254, 257, 403, 494, 508, 514, 589, 806, 988, 1016, 1028, 1178, 1612, 1651, 1976, 2056, 2356, 2413, 3224, 3302, 3341, 3937, 4712, 4826, 4883, 6604, 6682, 7657, 7874, 7967, 9652, 9766, 13208, 13364, 15314, 15748, 15934, 19304, 19532, 26728, 30628, 31369, 31496, 31868, 32639, 39064, 51181, 61256, 62738, 63479, 63736, 65278, 74803, 102362, 103571, 125476, 126958, 130556, 149606, 151373, 204724, 207142, 250952, 253916, 261112, 299212, 302746, 409448, 414284, 424307, 507832, 598424, 605492, 620141, 828568, 848614, 972439, 1011809, 1210984, 1240282, 1697228, 1944878, 1967849, 2023618, 2480564, 3394456, 3889756, 3935698, 4047236, 4961128, 7779512, 7871396, 8061833, 8094472, 13153517, 15742792, 16123666, 19224371, 26307034, 32247332, 38448742, 52614068, 64494664, 76897484, 105228136, 153794968, 249916823, 499833646, 999667292, 1999334584]

約数ペア:

[(1, 1999334584), (2, 999667292), (4, 499833646), (8, 249916823), (13, 153794968), (19, 105228136), (26, 76897484), (31, 64494664), (38, 52614068), (52, 38448742), (62, 32247332), (76, 26307034), (104, 19224371), (124, 16123666), (127, 15742792), (152, 13153517), (247, 8094472), (248, 8061833), (254, 7871396), (257, 7779512), (403, 4961128), (494, 4047236), (508, 3935698), (514, 3889756), (589, 3394456), (806, 2480564), (988, 2023618), (1016, 1967849), (1028, 1944878), (1178, 1697228), (1612, 1240282), (1651, 1210984), (1976, 1011809), (2056, 972439), (2356, 848614), (2413, 828568), (3224, 620141), (3302, 605492), (3341, 598424), (3937, 507832), (4712, 424307), (4826, 414284), (4883, 409448), (6604, 302746), (6682, 299212), (7657, 261112), (7874, 253916), (7967, 250952), (9652, 207142), (9766, 204724), (13208, 151373), (13364, 149606), (15314, 130556), (15748, 126958), (15934, 125476), (19304, 103571), (19532, 102362), (26728, 74803), (30628, 65278), (31369, 63736), (31496, 63479), (31868, 62738), (32639, 61256), (39064, 51181)]