21878080

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9767}}^1$

素因数の和:9791

約数の個数: 56

約数和(自身を含む): 59545728

約数和(自身を除く): 37667648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9767, 19534, 39068, 48835, 68369, 78136, 97670, 136738, 156272, 195340, 273476, 312544, 341845, 390680, 546952, 625088, 683690, 781360, 1093904, 1367380, 1562720, 2187808, 2734760, 3125440, 4375616, 5469520, 10939040, 21878080]

約数ペア:

[(1, 21878080), (2, 10939040), (4, 5469520), (5, 4375616), (7, 3125440), (8, 2734760), (10, 2187808), (14, 1562720), (16, 1367380), (20, 1093904), (28, 781360), (32, 683690), (35, 625088), (40, 546952), (56, 390680), (64, 341845), (70, 312544), (80, 273476), (112, 195340), (140, 156272), (160, 136738), (224, 97670), (280, 78136), (320, 68369), (448, 48835), (560, 39068), (1120, 19534), (2240, 9767)]