20279040

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5281}}^1$

素因数の和:5305

約数の個数: 72

約数和(自身を含む): 64778448

約数和(自身を除く): 44499408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5281, 10562, 15843, 21124, 26405, 31686, 42248, 52810, 63372, 79215, 84496, 105620, 126744, 158430, 168992, 211240, 253488, 316860, 337984, 422480, 506976, 633720, 675968, 844960, 1013952, 1267440, 1351936, 1689920, 2027904, 2534880, 3379840, 4055808, 5069760, 6759680, 10139520, 20279040]

約数ペア:

[(1, 20279040), (2, 10139520), (3, 6759680), (4, 5069760), (5, 4055808), (6, 3379840), (8, 2534880), (10, 2027904), (12, 1689920), (15, 1351936), (16, 1267440), (20, 1013952), (24, 844960), (30, 675968), (32, 633720), (40, 506976), (48, 422480), (60, 337984), (64, 316860), (80, 253488), (96, 211240), (120, 168992), (128, 158430), (160, 126744), (192, 105620), (240, 84496), (256, 79215), (320, 63372), (384, 52810), (480, 42248), (640, 31686), (768, 26405), (960, 21124), (1280, 15843), (1920, 10562), (3840, 5281)]