20621280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42961}}^1$

素因数の和:42979

約数の個数: 48

約数和(自身を含む): 64958544

約数和(自身を除く): 44337264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42961, 85922, 128883, 171844, 214805, 257766, 343688, 429610, 515532, 644415, 687376, 859220, 1031064, 1288830, 1374752, 1718440, 2062128, 2577660, 3436880, 4124256, 5155320, 6873760, 10310640, 20621280]

約数ペア:

[(1, 20621280), (2, 10310640), (3, 6873760), (4, 5155320), (5, 4124256), (6, 3436880), (8, 2577660), (10, 2062128), (12, 1718440), (15, 1374752), (16, 1288830), (20, 1031064), (24, 859220), (30, 687376), (32, 644415), (40, 515532), (48, 429610), (60, 343688), (80, 257766), (96, 214805), (120, 171844), (160, 128883), (240, 85922), (480, 42961)]