28320660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3659}}^1$

素因数の和:3717

約数の個数: 72

約数和(自身を含む): 87927840

約数和(自身を除く): 59607180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3659, 3870, 7318, 7740, 10977, 14636, 18295, 21954, 32931, 36590, 43908, 54885, 65862, 73180, 109770, 131724, 157337, 164655, 219540, 314674, 329310, 472011, 629348, 658620, 786685, 944022, 1416033, 1573370, 1888044, 2360055, 2832066, 3146740, 4720110, 5664132, 7080165, 9440220, 14160330, 28320660]

約数ペア:

[(1, 28320660), (2, 14160330), (3, 9440220), (4, 7080165), (5, 5664132), (6, 4720110), (9, 3146740), (10, 2832066), (12, 2360055), (15, 1888044), (18, 1573370), (20, 1416033), (30, 944022), (36, 786685), (43, 658620), (45, 629348), (60, 472011), (86, 329310), (90, 314674), (129, 219540), (172, 164655), (180, 157337), (215, 131724), (258, 109770), (387, 73180), (430, 65862), (516, 54885), (645, 43908), (774, 36590), (860, 32931), (1290, 21954), (1548, 18295), (1935, 14636), (2580, 10977), (3659, 7740), (3870, 7318)]