20862720

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1811}}^1$

素因数の和:1838

約数の個数: 108

約数和(自身を含む): 72222696

約数和(自身を除く): 51359976

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, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1811, 1920, 2304, 2880, 3622, 3840, 5433, 5760, 7244, 9055, 10866, 11520, 14488, 16299, 18110, 21732, 27165, 28976, 32598, 36220, 43464, 54330, 57952, 65196, 72440, 81495, 86928, 108660, 115904, 130392, 144880, 162990, 173856, 217320, 231808, 260784, 289760, 325980, 347712, 434640, 463616, 521568, 579520, 651960, 695424, 869280, 1043136, 1159040, 1303920, 1390848, 1738560, 2086272, 2318080, 2607840, 3477120, 4172544, 5215680, 6954240, 10431360, 20862720]

約数ペア:

[(1, 20862720), (2, 10431360), (3, 6954240), (4, 5215680), (5, 4172544), (6, 3477120), (8, 2607840), (9, 2318080), (10, 2086272), (12, 1738560), (15, 1390848), (16, 1303920), (18, 1159040), (20, 1043136), (24, 869280), (30, 695424), (32, 651960), (36, 579520), (40, 521568), (45, 463616), (48, 434640), (60, 347712), (64, 325980), (72, 289760), (80, 260784), (90, 231808), (96, 217320), (120, 173856), (128, 162990), (144, 144880), (160, 130392), (180, 115904), (192, 108660), (240, 86928), (256, 81495), (288, 72440), (320, 65196), (360, 57952), (384, 54330), (480, 43464), (576, 36220), (640, 32598), (720, 28976), (768, 27165), (960, 21732), (1152, 18110), (1280, 16299), (1440, 14488), (1811, 11520), (1920, 10866), (2304, 9055), (2880, 7244), (3622, 5760), (3840, 5433)]