81487504

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 191952000

約数和(自身を除く): 110464496

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 149, 152, 257, 266, 298, 304, 514, 532, 596, 1028, 1043, 1064, 1192, 1799, 2056, 2086, 2128, 2384, 2831, 3598, 4112, 4172, 4883, 5662, 7196, 8344, 9766, 11324, 14392, 16688, 19532, 19817, 22648, 28784, 34181, 38293, 39064, 39634, 45296, 68362, 76586, 78128, 79268, 136724, 153172, 158536, 268051, 273448, 306344, 317072, 536102, 546896, 612688, 727567, 1072204, 1455134, 2144408, 2910268, 4288816, 5092969, 5820536, 10185938, 11641072, 20371876, 40743752, 81487504]

約数ペア:

[(1, 81487504), (2, 40743752), (4, 20371876), (7, 11641072), (8, 10185938), (14, 5820536), (16, 5092969), (19, 4288816), (28, 2910268), (38, 2144408), (56, 1455134), (76, 1072204), (112, 727567), (133, 612688), (149, 546896), (152, 536102), (257, 317072), (266, 306344), (298, 273448), (304, 268051), (514, 158536), (532, 153172), (596, 136724), (1028, 79268), (1043, 78128), (1064, 76586), (1192, 68362), (1799, 45296), (2056, 39634), (2086, 39064), (2128, 38293), (2384, 34181), (2831, 28784), (3598, 22648), (4112, 19817), (4172, 19532), (4883, 16688), (5662, 14392), (7196, 11324), (8344, 9766)]