21347280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9883}}^1$

素因数の和:9905

約数の個数: 80

約数和(自身を含む): 73536960

約数和(自身を除く): 52189680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9883, 19766, 29649, 39532, 49415, 59298, 79064, 88947, 98830, 118596, 148245, 158128, 177894, 197660, 237192, 266841, 296490, 355788, 395320, 444735, 474384, 533682, 592980, 711576, 790640, 889470, 1067364, 1185960, 1334205, 1423152, 1778940, 2134728, 2371920, 2668410, 3557880, 4269456, 5336820, 7115760, 10673640, 21347280]

約数ペア:

[(1, 21347280), (2, 10673640), (3, 7115760), (4, 5336820), (5, 4269456), (6, 3557880), (8, 2668410), (9, 2371920), (10, 2134728), (12, 1778940), (15, 1423152), (16, 1334205), (18, 1185960), (20, 1067364), (24, 889470), (27, 790640), (30, 711576), (36, 592980), (40, 533682), (45, 474384), (48, 444735), (54, 395320), (60, 355788), (72, 296490), (80, 266841), (90, 237192), (108, 197660), (120, 177894), (135, 158128), (144, 148245), (180, 118596), (216, 98830), (240, 88947), (270, 79064), (360, 59298), (432, 49415), (540, 39532), (720, 29649), (1080, 19766), (2160, 9883)]