20566240

素因数分解:

$2^5\times 5^1\times {\mathrm{173}}^1\times {\mathrm{743}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 48934368

約数和(自身を除く): 28368128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 173, 346, 692, 743, 865, 1384, 1486, 1730, 2768, 2972, 3460, 3715, 5536, 5944, 6920, 7430, 11888, 13840, 14860, 23776, 27680, 29720, 59440, 118880, 128539, 257078, 514156, 642695, 1028312, 1285390, 2056624, 2570780, 4113248, 5141560, 10283120, 20566240]

約数ペア:

[(1, 20566240), (2, 10283120), (4, 5141560), (5, 4113248), (8, 2570780), (10, 2056624), (16, 1285390), (20, 1028312), (32, 642695), (40, 514156), (80, 257078), (160, 128539), (173, 118880), (346, 59440), (692, 29720), (743, 27680), (865, 23776), (1384, 14860), (1486, 13840), (1730, 11888), (2768, 7430), (2972, 6920), (3460, 5944), (3715, 5536)]