20055720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1723}}^1$

素因数の和:1834

約数の個数: 64

約数和(自身を含む): 60822720

約数和(自身を除く): 40767000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1723, 1940, 2328, 2910, 3446, 3880, 5169, 5820, 6892, 8615, 10338, 11640, 13784, 17230, 20676, 25845, 34460, 41352, 51690, 68920, 103380, 167131, 206760, 334262, 501393, 668524, 835655, 1002786, 1337048, 1671310, 2005572, 2506965, 3342620, 4011144, 5013930, 6685240, 10027860, 20055720]

約数ペア:

[(1, 20055720), (2, 10027860), (3, 6685240), (4, 5013930), (5, 4011144), (6, 3342620), (8, 2506965), (10, 2005572), (12, 1671310), (15, 1337048), (20, 1002786), (24, 835655), (30, 668524), (40, 501393), (60, 334262), (97, 206760), (120, 167131), (194, 103380), (291, 68920), (388, 51690), (485, 41352), (582, 34460), (776, 25845), (970, 20676), (1164, 17230), (1455, 13784), (1723, 11640), (1940, 10338), (2328, 8615), (2910, 6892), (3446, 5820), (3880, 5169)]