28001520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{38891}}^1$

素因数の和:38910

約数の個数: 60

約数和(自身を含む): 94040856

約数和(自身を除く): 66039336

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 38891, 77782, 116673, 155564, 194455, 233346, 311128, 350019, 388910, 466692, 583365, 622256, 700038, 777820, 933384, 1166730, 1400076, 1555640, 1750095, 1866768, 2333460, 2800152, 3111280, 3500190, 4666920, 5600304, 7000380, 9333840, 14000760, 28001520]

約数ペア:

[(1, 28001520), (2, 14000760), (3, 9333840), (4, 7000380), (5, 5600304), (6, 4666920), (8, 3500190), (9, 3111280), (10, 2800152), (12, 2333460), (15, 1866768), (16, 1750095), (18, 1555640), (20, 1400076), (24, 1166730), (30, 933384), (36, 777820), (40, 700038), (45, 622256), (48, 583365), (60, 466692), (72, 388910), (80, 350019), (90, 311128), (120, 233346), (144, 194455), (180, 155564), (240, 116673), (360, 77782), (720, 38891)]