18538860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1231}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 33619092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 251, 502, 753, 1004, 1231, 1255, 1506, 2462, 2510, 3012, 3693, 3765, 4924, 5020, 6155, 7386, 7530, 12310, 14772, 15060, 18465, 24620, 36930, 73860, 308981, 617962, 926943, 1235924, 1544905, 1853886, 3089810, 3707772, 4634715, 6179620, 9269430, 18538860]

約数ペア:

[(1, 18538860), (2, 9269430), (3, 6179620), (4, 4634715), (5, 3707772), (6, 3089810), (10, 1853886), (12, 1544905), (15, 1235924), (20, 926943), (30, 617962), (60, 308981), (251, 73860), (502, 36930), (753, 24620), (1004, 18465), (1231, 15060), (1255, 14772), (1506, 12310), (2462, 7530), (2510, 7386), (3012, 6155), (3693, 5020), (3765, 4924)]