90087680

素因数分解:

$2^8\times 5^1\times {\mathrm{70381}}^1$

素因数の和:70402

約数の個数: 36

約数和(自身を含む): 215791212

約数和(自身を除く): 125703532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 70381, 140762, 281524, 351905, 563048, 703810, 1126096, 1407620, 2252192, 2815240, 4504384, 5630480, 9008768, 11260960, 18017536, 22521920, 45043840, 90087680]

約数ペア:

[(1, 90087680), (2, 45043840), (4, 22521920), (5, 18017536), (8, 11260960), (10, 9008768), (16, 5630480), (20, 4504384), (32, 2815240), (40, 2252192), (64, 1407620), (80, 1126096), (128, 703810), (160, 563048), (256, 351905), (320, 281524), (640, 140762), (1280, 70381)]