81170040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1361}}^1$

素因数の和:1453

約数の個数: 128

約数和(自身を含む): 282424320

約数和(自身を除く): 201254280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1361, 1420, 1491, 1704, 1988, 2130, 2485, 2722, 2840, 2982, 3976, 4083, 4260, 4970, 5444, 5964, 6805, 7455, 8166, 8520, 9527, 9940, 10888, 11928, 13610, 14910, 16332, 19054, 19880, 20415, 27220, 28581, 29820, 32664, 38108, 40830, 47635, 54440, 57162, 59640, 76216, 81660, 95270, 96631, 114324, 142905, 163320, 190540, 193262, 228648, 285810, 289893, 381080, 386524, 483155, 571620, 579786, 676417, 773048, 966310, 1143240, 1159572, 1352834, 1449465, 1932620, 2029251, 2319144, 2705668, 2898930, 3382085, 3865240, 4058502, 5411336, 5797860, 6764170, 8117004, 10146255, 11595720, 13528340, 16234008, 20292510, 27056680, 40585020, 81170040]

約数ペア:

[(1, 81170040), (2, 40585020), (3, 27056680), (4, 20292510), (5, 16234008), (6, 13528340), (7, 11595720), (8, 10146255), (10, 8117004), (12, 6764170), (14, 5797860), (15, 5411336), (20, 4058502), (21, 3865240), (24, 3382085), (28, 2898930), (30, 2705668), (35, 2319144), (40, 2029251), (42, 1932620), (56, 1449465), (60, 1352834), (70, 1159572), (71, 1143240), (84, 966310), (105, 773048), (120, 676417), (140, 579786), (142, 571620), (168, 483155), (210, 386524), (213, 381080), (280, 289893), (284, 285810), (355, 228648), (420, 193262), (426, 190540), (497, 163320), (568, 142905), (710, 114324), (840, 96631), (852, 95270), (994, 81660), (1065, 76216), (1361, 59640), (1420, 57162), (1491, 54440), (1704, 47635), (1988, 40830), (2130, 38108), (2485, 32664), (2722, 29820), (2840, 28581), (2982, 27220), (3976, 20415), (4083, 19880), (4260, 19054), (4970, 16332), (5444, 14910), (5964, 13610), (6805, 11928), (7455, 10888), (8166, 9940), (8520, 9527)]