81435240

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{75403}}^1$

素因数の和:75423

約数の個数: 64

約数和(自身を含む): 271454400

約数和(自身を除く): 190019160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 75403, 150806, 226209, 301612, 377015, 452418, 603224, 678627, 754030, 904836, 1131045, 1357254, 1508060, 1809672, 2035881, 2262090, 2714508, 3016120, 3393135, 4071762, 4524180, 5429016, 6786270, 8143524, 9048360, 10179405, 13572540, 16287048, 20358810, 27145080, 40717620, 81435240]

約数ペア:

[(1, 81435240), (2, 40717620), (3, 27145080), (4, 20358810), (5, 16287048), (6, 13572540), (8, 10179405), (9, 9048360), (10, 8143524), (12, 6786270), (15, 5429016), (18, 4524180), (20, 4071762), (24, 3393135), (27, 3016120), (30, 2714508), (36, 2262090), (40, 2035881), (45, 1809672), (54, 1508060), (60, 1357254), (72, 1131045), (90, 904836), (108, 754030), (120, 678627), (135, 603224), (180, 452418), (216, 377015), (270, 301612), (360, 226209), (540, 150806), (1080, 75403)]