18315675

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 38881440

約数和(自身を除く): 20565765

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 63, 75, 87, 105, 145, 175, 203, 225, 261, 315, 401, 435, 525, 609, 725, 1015, 1203, 1305, 1575, 1827, 2005, 2175, 2807, 3045, 3609, 5075, 6015, 6525, 8421, 9135, 10025, 11629, 14035, 15225, 18045, 25263, 30075, 34887, 42105, 45675, 58145, 70175, 81403, 90225, 104661, 126315, 174435, 210525, 244209, 290725, 407015, 523305, 631575, 732627, 872175, 1221045, 2035075, 2616525, 3663135, 6105225, 18315675]

約数ペア:

[(1, 18315675), (3, 6105225), (5, 3663135), (7, 2616525), (9, 2035075), (15, 1221045), (21, 872175), (25, 732627), (29, 631575), (35, 523305), (45, 407015), (63, 290725), (75, 244209), (87, 210525), (105, 174435), (145, 126315), (175, 104661), (203, 90225), (225, 81403), (261, 70175), (315, 58145), (401, 45675), (435, 42105), (525, 34887), (609, 30075), (725, 25263), (1015, 18045), (1203, 15225), (1305, 14035), (1575, 11629), (1827, 10025), (2005, 9135), (2175, 8421), (2807, 6525), (3045, 6015), (3609, 5075)]