397960888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 901393920

約数和(自身を除く): 503433032

約数列:

[1, 2, 4, 8, 13, 17, 26, 31, 34, 52, 53, 62, 68, 104, 106, 124, 136, 137, 212, 221, 248, 274, 403, 424, 442, 527, 548, 689, 806, 884, 901, 1054, 1096, 1378, 1612, 1643, 1768, 1781, 1802, 2108, 2329, 2756, 3224, 3286, 3562, 3604, 4216, 4247, 4658, 5512, 6572, 6851, 7124, 7208, 7261, 8494, 9316, 11713, 13144, 13702, 14248, 14522, 16988, 18632, 21359, 23426, 27404, 27931, 29044, 30277, 33976, 42718, 46852, 54808, 55211, 55862, 58088, 60554, 72199, 85436, 93704, 94393, 110422, 111724, 121108, 123437, 144398, 170872, 188786, 220844, 223448, 225091, 242216, 246874, 288796, 363103, 377572, 441688, 450182, 493748, 577592, 726206, 755144, 900364, 938587, 987496, 1452412, 1604681, 1800728, 1877174, 2904824, 2926183, 3209362, 3754348, 3826547, 5852366, 6418724, 7508696, 7653094, 11704732, 12837448, 15306188, 23409464, 30612376, 49745111, 99490222, 198980444, 397960888]

約数ペア:

[(1, 397960888), (2, 198980444), (4, 99490222), (8, 49745111), (13, 30612376), (17, 23409464), (26, 15306188), (31, 12837448), (34, 11704732), (52, 7653094), (53, 7508696), (62, 6418724), (68, 5852366), (104, 3826547), (106, 3754348), (124, 3209362), (136, 2926183), (137, 2904824), (212, 1877174), (221, 1800728), (248, 1604681), (274, 1452412), (403, 987496), (424, 938587), (442, 900364), (527, 755144), (548, 726206), (689, 577592), (806, 493748), (884, 450182), (901, 441688), (1054, 377572), (1096, 363103), (1378, 288796), (1612, 246874), (1643, 242216), (1768, 225091), (1781, 223448), (1802, 220844), (2108, 188786), (2329, 170872), (2756, 144398), (3224, 123437), (3286, 121108), (3562, 111724), (3604, 110422), (4216, 94393), (4247, 93704), (4658, 85436), (5512, 72199), (6572, 60554), (6851, 58088), (7124, 55862), (7208, 55211), (7261, 54808), (8494, 46852), (9316, 42718), (11713, 33976), (13144, 30277), (13702, 29044), (14248, 27931), (14522, 27404), (16988, 23426), (18632, 21359)]