28643040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19891}}^1$

素因数の和:19912

約数の個数: 72

約数和(自身を含む): 97749288

約数和(自身を除く): 69106248

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19891, 39782, 59673, 79564, 99455, 119346, 159128, 179019, 198910, 238692, 298365, 318256, 358038, 397820, 477384, 596730, 636512, 716076, 795640, 895095, 954768, 1193460, 1432152, 1591280, 1790190, 1909536, 2386920, 2864304, 3182560, 3580380, 4773840, 5728608, 7160760, 9547680, 14321520, 28643040]

約数ペア:

[(1, 28643040), (2, 14321520), (3, 9547680), (4, 7160760), (5, 5728608), (6, 4773840), (8, 3580380), (9, 3182560), (10, 2864304), (12, 2386920), (15, 1909536), (16, 1790190), (18, 1591280), (20, 1432152), (24, 1193460), (30, 954768), (32, 895095), (36, 795640), (40, 716076), (45, 636512), (48, 596730), (60, 477384), (72, 397820), (80, 358038), (90, 318256), (96, 298365), (120, 238692), (144, 198910), (160, 179019), (180, 159128), (240, 119346), (288, 99455), (360, 79564), (480, 59673), (720, 39782), (1440, 19891)]