81283440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48383}}^1$

素因数の和:48406

約数の個数: 80

約数和(自身を含む): 287981568

約数和(自身を除く): 206698128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48383, 96766, 145149, 193532, 241915, 290298, 338681, 387064, 483830, 580596, 677362, 725745, 774128, 967660, 1016043, 1161192, 1354724, 1451490, 1693405, 1935320, 2032086, 2322384, 2709448, 2902980, 3386810, 3870640, 4064172, 5080215, 5418896, 5805960, 6773620, 8128344, 10160430, 11611920, 13547240, 16256688, 20320860, 27094480, 40641720, 81283440]

約数ペア:

[(1, 81283440), (2, 40641720), (3, 27094480), (4, 20320860), (5, 16256688), (6, 13547240), (7, 11611920), (8, 10160430), (10, 8128344), (12, 6773620), (14, 5805960), (15, 5418896), (16, 5080215), (20, 4064172), (21, 3870640), (24, 3386810), (28, 2902980), (30, 2709448), (35, 2322384), (40, 2032086), (42, 1935320), (48, 1693405), (56, 1451490), (60, 1354724), (70, 1161192), (80, 1016043), (84, 967660), (105, 774128), (112, 725745), (120, 677362), (140, 580596), (168, 483830), (210, 387064), (240, 338681), (280, 290298), (336, 241915), (420, 193532), (560, 145149), (840, 96766), (1680, 48383)]