20433280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4561}}^1$

素因数の和:4587

約数の個数: 64

約数和(自身を含む): 55838880

約数和(自身を除く): 35405600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4561, 9122, 18244, 22805, 31927, 36488, 45610, 63854, 72976, 91220, 127708, 145952, 159635, 182440, 255416, 291904, 319270, 364880, 510832, 583808, 638540, 729760, 1021664, 1277080, 1459520, 2043328, 2554160, 2919040, 4086656, 5108320, 10216640, 20433280]

約数ペア:

[(1, 20433280), (2, 10216640), (4, 5108320), (5, 4086656), (7, 2919040), (8, 2554160), (10, 2043328), (14, 1459520), (16, 1277080), (20, 1021664), (28, 729760), (32, 638540), (35, 583808), (40, 510832), (56, 364880), (64, 319270), (70, 291904), (80, 255416), (112, 182440), (128, 159635), (140, 145952), (160, 127708), (224, 91220), (280, 72976), (320, 63854), (448, 45610), (560, 36488), (640, 31927), (896, 22805), (1120, 18244), (2240, 9122), (4480, 4561)]