81384744

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6823}}^1$

素因数の和:6910

約数の個数: 64

約数和(自身を含む): 235837440

約数和(自身を除く): 154452696

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 142, 168, 213, 284, 426, 497, 568, 852, 994, 1491, 1704, 1988, 2982, 3976, 5964, 6823, 11928, 13646, 20469, 27292, 40938, 47761, 54584, 81876, 95522, 143283, 163752, 191044, 286566, 382088, 484433, 573132, 968866, 1146264, 1453299, 1937732, 2906598, 3391031, 3875464, 5813196, 6782062, 10173093, 11626392, 13564124, 20346186, 27128248, 40692372, 81384744]

約数ペア:

[(1, 81384744), (2, 40692372), (3, 27128248), (4, 20346186), (6, 13564124), (7, 11626392), (8, 10173093), (12, 6782062), (14, 5813196), (21, 3875464), (24, 3391031), (28, 2906598), (42, 1937732), (56, 1453299), (71, 1146264), (84, 968866), (142, 573132), (168, 484433), (213, 382088), (284, 286566), (426, 191044), (497, 163752), (568, 143283), (852, 95522), (994, 81876), (1491, 54584), (1704, 47761), (1988, 40938), (2982, 27292), (3976, 20469), (5964, 13646), (6823, 11928)]