20090220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17623}}^1$

素因数の和:17654

約数の個数: 48

約数和(自身を含む): 59216640

約数和(自身を除く): 39126420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17623, 35246, 52869, 70492, 88115, 105738, 176230, 211476, 264345, 334837, 352460, 528690, 669674, 1004511, 1057380, 1339348, 1674185, 2009022, 3348370, 4018044, 5022555, 6696740, 10045110, 20090220]

約数ペア:

[(1, 20090220), (2, 10045110), (3, 6696740), (4, 5022555), (5, 4018044), (6, 3348370), (10, 2009022), (12, 1674185), (15, 1339348), (19, 1057380), (20, 1004511), (30, 669674), (38, 528690), (57, 352460), (60, 334837), (76, 264345), (95, 211476), (114, 176230), (190, 105738), (228, 88115), (285, 70492), (380, 52869), (570, 35246), (1140, 17623)]